Home / 5,160.85-7,114.92-3,545.71

Finding the Fourth Proportional to 5,160.85, 7,114.92 and 3,545.71

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Solution

The fourth proportional to 5,160.85, 7,114.92 and 3,545.71 is: 4,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.85 : 7,114.92 = 3,545.71 : x
  2. Step 2: Convert to fraction form
    5,160.85/7,114.92 = 3,545.71/x
  3. Step 3: Cross multiply
    5,160.85x = 7,114.92 × 3,545.71
  4. Step 4: Simplify right side
    5,160.85x = 25,227,442.99
  5. Step 5: Solve for x
    x = 25,227,442.99/5,160.85
  6. Step 6: Final answer
    x = 4,888.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.