Home / 7,110.28-9,812.19-3,966.47

Finding the Fourth Proportional to 7,110.28, 9,812.19 and 3,966.47

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Solution

The fourth proportional to 7,110.28, 9,812.19 and 3,966.47 is: 5,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.28 : 9,812.19 = 3,966.47 : x
  2. Step 2: Convert to fraction form
    7,110.28/9,812.19 = 3,966.47/x
  3. Step 3: Cross multiply
    7,110.28x = 9,812.19 × 3,966.47
  4. Step 4: Simplify right side
    7,110.28x = 38,919,737.57
  5. Step 5: Solve for x
    x = 38,919,737.57/7,110.28
  6. Step 6: Final answer
    x = 5,473.73

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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.