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Finding the Fourth Proportional to 3,141.88, 4,712.82 and 1,061.50

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Solution

The fourth proportional to 3,141.88, 4,712.82 and 1,061.50 is: 1,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.88 : 4,712.82 = 1,061.50 : x
  2. Step 2: Convert to fraction form
    3,141.88/4,712.82 = 1,061.50/x
  3. Step 3: Cross multiply
    3,141.88x = 4,712.82 × 1,061.50
  4. Step 4: Simplify right side
    3,141.88x = 5,002,658.43
  5. Step 5: Solve for x
    x = 5,002,658.43/3,141.88
  6. Step 6: Final answer
    x = 1,592.25

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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.