Home / 5,688.68-8,517.29-2,909.36

Finding the Fourth Proportional to 5,688.68, 8,517.29 and 2,909.36

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Solution

The fourth proportional to 5,688.68, 8,517.29 and 2,909.36 is: 4,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.68 : 8,517.29 = 2,909.36 : x
  2. Step 2: Convert to fraction form
    5,688.68/8,517.29 = 2,909.36/x
  3. Step 3: Cross multiply
    5,688.68x = 8,517.29 × 2,909.36
  4. Step 4: Simplify right side
    5,688.68x = 24,779,862.83
  5. Step 5: Solve for x
    x = 24,779,862.83/5,688.68
  6. Step 6: Final answer
    x = 4,356.00

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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.