Home / 7,242.38-10,842.90-4,769.66

Finding the Fourth Proportional to 7,242.38, 10,842.90 and 4,769.66

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Solution

The fourth proportional to 7,242.38, 10,842.90 and 4,769.66 is: 7,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.38 : 10,842.90 = 4,769.66 : x
  2. Step 2: Convert to fraction form
    7,242.38/10,842.90 = 4,769.66/x
  3. Step 3: Cross multiply
    7,242.38x = 10,842.90 × 4,769.66
  4. Step 4: Simplify right side
    7,242.38x = 51,716,892.20
  5. Step 5: Solve for x
    x = 51,716,892.20/7,242.38
  6. Step 6: Final answer
    x = 7,140.87

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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.