Home / 5,144.92-7,103.65-3,156.11

Finding the Fourth Proportional to 5,144.92, 7,103.65 and 3,156.11

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Solution

The fourth proportional to 5,144.92, 7,103.65 and 3,156.11 is: 4,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.92 : 7,103.65 = 3,156.11 : x
  2. Step 2: Convert to fraction form
    5,144.92/7,103.65 = 3,156.11/x
  3. Step 3: Cross multiply
    5,144.92x = 7,103.65 × 3,156.11
  4. Step 4: Simplify right side
    5,144.92x = 22,419,929.91
  5. Step 5: Solve for x
    x = 22,419,929.91/5,144.92
  6. Step 6: Final answer
    x = 4,357.69

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1.5x scale

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.