Home / 5,487.70-7,572.82-3,130.60

Finding the Fourth Proportional to 5,487.70, 7,572.82 and 3,130.60

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Solution

The fourth proportional to 5,487.70, 7,572.82 and 3,130.60 is: 4,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.70 : 7,572.82 = 3,130.60 : x
  2. Step 2: Convert to fraction form
    5,487.70/7,572.82 = 3,130.60/x
  3. Step 3: Cross multiply
    5,487.70x = 7,572.82 × 3,130.60
  4. Step 4: Simplify right side
    5,487.70x = 23,707,470.29
  5. Step 5: Solve for x
    x = 23,707,470.29/5,487.70
  6. Step 6: Final answer
    x = 4,320.11

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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.