Home / 7,715.16-11,572.02-3,331.80

Finding the Fourth Proportional to 7,715.16, 11,572.02 and 3,331.80

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Solution

The fourth proportional to 7,715.16, 11,572.02 and 3,331.80 is: 4,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.16 : 11,572.02 = 3,331.80 : x
  2. Step 2: Convert to fraction form
    7,715.16/11,572.02 = 3,331.80/x
  3. Step 3: Cross multiply
    7,715.16x = 11,572.02 × 3,331.80
  4. Step 4: Simplify right side
    7,715.16x = 38,555,656.24
  5. Step 5: Solve for x
    x = 38,555,656.24/7,715.16
  6. Step 6: Final answer
    x = 4,997.39

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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.