Home / 5,921.79-8,170.16-3,932.74

Finding the Fourth Proportional to 5,921.79, 8,170.16 and 3,932.74

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Solution

The fourth proportional to 5,921.79, 8,170.16 and 3,932.74 is: 5,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.79 : 8,170.16 = 3,932.74 : x
  2. Step 2: Convert to fraction form
    5,921.79/8,170.16 = 3,932.74/x
  3. Step 3: Cross multiply
    5,921.79x = 8,170.16 × 3,932.74
  4. Step 4: Simplify right side
    5,921.79x = 32,131,115.04
  5. Step 5: Solve for x
    x = 32,131,115.04/5,921.79
  6. Step 6: Final answer
    x = 5,425.91

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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.