Home / 1,545.12-2,318.85-571.86

Finding the Fourth Proportional to 1,545.12, 2,318.85 and 571.86

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Solution

The fourth proportional to 1,545.12, 2,318.85 and 571.86 is: 858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.12 : 2,318.85 = 571.86 : x
  2. Step 2: Convert to fraction form
    1,545.12/2,318.85 = 571.86/x
  3. Step 3: Cross multiply
    1,545.12x = 2,318.85 × 571.86
  4. Step 4: Simplify right side
    1,545.12x = 1,326,057.56
  5. Step 5: Solve for x
    x = 1,326,057.56/1,545.12
  6. Step 6: Final answer
    x = 858.22

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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.