Home / 1,854.28-2,781.42-1,124.07

Finding the Fourth Proportional to 1,854.28, 2,781.42 and 1,124.07

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Solution

The fourth proportional to 1,854.28, 2,781.42 and 1,124.07 is: 1,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.28 : 2,781.42 = 1,124.07 : x
  2. Step 2: Convert to fraction form
    1,854.28/2,781.42 = 1,124.07/x
  3. Step 3: Cross multiply
    1,854.28x = 2,781.42 × 1,124.07
  4. Step 4: Simplify right side
    1,854.28x = 3,126,510.78
  5. Step 5: Solve for x
    x = 3,126,510.78/1,854.28
  6. Step 6: Final answer
    x = 1,686.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.