Home / 5,109.17-7,660.68-3,331.55

Finding the Fourth Proportional to 5,109.17, 7,660.68 and 3,331.55

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Solution

The fourth proportional to 5,109.17, 7,660.68 and 3,331.55 is: 4,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.17 : 7,660.68 = 3,331.55 : x
  2. Step 2: Convert to fraction form
    5,109.17/7,660.68 = 3,331.55/x
  3. Step 3: Cross multiply
    5,109.17x = 7,660.68 × 3,331.55
  4. Step 4: Simplify right side
    5,109.17x = 25,521,945.11
  5. Step 5: Solve for x
    x = 25,521,945.11/5,109.17
  6. Step 6: Final answer
    x = 4,995.32

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1.5x scale

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.