Home / 3,184.31-4,394.77-1,787.06

Finding the Fourth Proportional to 3,184.31, 4,394.77 and 1,787.06

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Solution

The fourth proportional to 3,184.31, 4,394.77 and 1,787.06 is: 2,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.31 : 4,394.77 = 1,787.06 : x
  2. Step 2: Convert to fraction form
    3,184.31/4,394.77 = 1,787.06/x
  3. Step 3: Cross multiply
    3,184.31x = 4,394.77 × 1,787.06
  4. Step 4: Simplify right side
    3,184.31x = 7,853,724.20
  5. Step 5: Solve for x
    x = 7,853,724.20/3,184.31
  6. Step 6: Final answer
    x = 2,466.38

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Find fourth proportional to 1,592.16, 2,197.38 and 893.53
Half scale
Find fourth proportional to 6,368.63, 8,789.54 and 3,574.13
Double scale
Find fourth proportional to 3,185.31, 4,396.15 and 1,788.06
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.