Home / 1,686.71-2,517.19-1,502.18

Finding the Fourth Proportional to 1,686.71, 2,517.19 and 1,502.18

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Solution

The fourth proportional to 1,686.71, 2,517.19 and 1,502.18 is: 2,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.71 : 2,517.19 = 1,502.18 : x
  2. Step 2: Convert to fraction form
    1,686.71/2,517.19 = 1,502.18/x
  3. Step 3: Cross multiply
    1,686.71x = 2,517.19 × 1,502.18
  4. Step 4: Simplify right side
    1,686.71x = 3,781,265.57
  5. Step 5: Solve for x
    x = 3,781,265.57/1,686.71
  6. Step 6: Final answer
    x = 2,241.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.