Home / 7,234.05-9,980.06-4,715.28

Finding the Fourth Proportional to 7,234.05, 9,980.06 and 4,715.28

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Solution

The fourth proportional to 7,234.05, 9,980.06 and 4,715.28 is: 6,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,234.05 : 9,980.06 = 4,715.28 : x
  2. Step 2: Convert to fraction form
    7,234.05/9,980.06 = 4,715.28/x
  3. Step 3: Cross multiply
    7,234.05x = 9,980.06 × 4,715.28
  4. Step 4: Simplify right side
    7,234.05x = 47,058,753.74
  5. Step 5: Solve for x
    x = 47,058,753.74/7,234.05
  6. Step 6: Final answer
    x = 6,505.17

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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.