Home / 2,766.19-3,817.31-1,587.45

Finding the Fourth Proportional to 2,766.19, 3,817.31 and 1,587.45

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Solution

The fourth proportional to 2,766.19, 3,817.31 and 1,587.45 is: 2,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.19 : 3,817.31 = 1,587.45 : x
  2. Step 2: Convert to fraction form
    2,766.19/3,817.31 = 1,587.45/x
  3. Step 3: Cross multiply
    2,766.19x = 3,817.31 × 1,587.45
  4. Step 4: Simplify right side
    2,766.19x = 6,059,788.76
  5. Step 5: Solve for x
    x = 6,059,788.76/2,766.19
  6. Step 6: Final answer
    x = 2,190.66

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Half 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.