Home / 3,731.32-5,145.12-2,934.74

Finding the Fourth Proportional to 3,731.32, 5,145.12 and 2,934.74

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Solution

The fourth proportional to 3,731.32, 5,145.12 and 2,934.74 is: 4,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.32 : 5,145.12 = 2,934.74 : x
  2. Step 2: Convert to fraction form
    3,731.32/5,145.12 = 2,934.74/x
  3. Step 3: Cross multiply
    3,731.32x = 5,145.12 × 2,934.74
  4. Step 4: Simplify right side
    3,731.32x = 15,099,589.47
  5. Step 5: Solve for x
    x = 15,099,589.47/3,731.32
  6. Step 6: Final answer
    x = 4,046.72

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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.