Home / 3,156.32-4,731.72-1,306.28

Finding the Fourth Proportional to 3,156.32, 4,731.72 and 1,306.28

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Solution

The fourth proportional to 3,156.32, 4,731.72 and 1,306.28 is: 1,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.32 : 4,731.72 = 1,306.28 : x
  2. Step 2: Convert to fraction form
    3,156.32/4,731.72 = 1,306.28/x
  3. Step 3: Cross multiply
    3,156.32x = 4,731.72 × 1,306.28
  4. Step 4: Simplify right side
    3,156.32x = 6,180,951.20
  5. Step 5: Solve for x
    x = 6,180,951.20/3,156.32
  6. Step 6: Final answer
    x = 1,958.28

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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.