Home / 9,151.20-13,721.64-2,910.06

Finding the Fourth Proportional to 9,151.20, 13,721.64 and 2,910.06

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Solution

The fourth proportional to 9,151.20, 13,721.64 and 2,910.06 is: 4,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.20 : 13,721.64 = 2,910.06 : x
  2. Step 2: Convert to fraction form
    9,151.20/13,721.64 = 2,910.06/x
  3. Step 3: Cross multiply
    9,151.20x = 13,721.64 × 2,910.06
  4. Step 4: Simplify right side
    9,151.20x = 39,930,795.70
  5. Step 5: Solve for x
    x = 39,930,795.70/9,151.20
  6. Step 6: Final answer
    x = 4,363.45

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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.