Home / 3,185.28-4,394.88-1,858.14

Finding the Fourth Proportional to 3,185.28, 4,394.88 and 1,858.14

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Solution

The fourth proportional to 3,185.28, 4,394.88 and 1,858.14 is: 2,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.28 : 4,394.88 = 1,858.14 : x
  2. Step 2: Convert to fraction form
    3,185.28/4,394.88 = 1,858.14/x
  3. Step 3: Cross multiply
    3,185.28x = 4,394.88 × 1,858.14
  4. Step 4: Simplify right side
    3,185.28x = 8,166,302.32
  5. Step 5: Solve for x
    x = 8,166,302.32/3,185.28
  6. Step 6: Final answer
    x = 2,563.76

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Double scale
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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.