Home / 5,147.18-7,720.56-3,582.66

Finding the Fourth Proportional to 5,147.18, 7,720.56 and 3,582.66

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Solution

The fourth proportional to 5,147.18, 7,720.56 and 3,582.66 is: 5,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.18 : 7,720.56 = 3,582.66 : x
  2. Step 2: Convert to fraction form
    5,147.18/7,720.56 = 3,582.66/x
  3. Step 3: Cross multiply
    5,147.18x = 7,720.56 × 3,582.66
  4. Step 4: Simplify right side
    5,147.18x = 27,660,141.49
  5. Step 5: Solve for x
    x = 27,660,141.49/5,147.18
  6. Step 6: Final answer
    x = 5,373.85

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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.