Home / 5,170.86-7,134.62-2,932.20

Finding the Fourth Proportional to 5,170.86, 7,134.62 and 2,932.20

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Solution

The fourth proportional to 5,170.86, 7,134.62 and 2,932.20 is: 4,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.86 : 7,134.62 = 2,932.20 : x
  2. Step 2: Convert to fraction form
    5,170.86/7,134.62 = 2,932.20/x
  3. Step 3: Cross multiply
    5,170.86x = 7,134.62 × 2,932.20
  4. Step 4: Simplify right side
    5,170.86x = 20,920,118.10
  5. Step 5: Solve for x
    x = 20,920,118.10/5,170.86
  6. Step 6: Final answer
    x = 4,045.77

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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.