Home / 4,747.10-7,121.17-2,910.02

Finding the Fourth Proportional to 4,747.10, 7,121.17 and 2,910.02

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Solution

The fourth proportional to 4,747.10, 7,121.17 and 2,910.02 is: 4,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.10 : 7,121.17 = 2,910.02 : x
  2. Step 2: Convert to fraction form
    4,747.10/7,121.17 = 2,910.02/x
  3. Step 3: Cross multiply
    4,747.10x = 7,121.17 × 2,910.02
  4. Step 4: Simplify right side
    4,747.10x = 20,722,747.12
  5. Step 5: Solve for x
    x = 20,722,747.12/4,747.10
  6. Step 6: Final answer
    x = 4,365.35

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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.