Home / 1,711.50-2,567.87-724.57

Finding the Fourth Proportional to 1,711.50, 2,567.87 and 724.57

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Solution

The fourth proportional to 1,711.50, 2,567.87 and 724.57 is: 1,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.50 : 2,567.87 = 724.57 : x
  2. Step 2: Convert to fraction form
    1,711.50/2,567.87 = 724.57/x
  3. Step 3: Cross multiply
    1,711.50x = 2,567.87 × 724.57
  4. Step 4: Simplify right side
    1,711.50x = 1,860,594.24
  5. Step 5: Solve for x
    x = 1,860,594.24/1,711.50
  6. Step 6: Final answer
    x = 1,087.12

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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.