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Finding the Fourth Proportional to 4,247.12, 6,375 and 3,015.92

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Solution

The fourth proportional to 4,247.12, 6,375 and 3,015.92 is: 4,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.12 : 6,375 = 3,015.92 : x
  2. Step 2: Convert to fraction form
    4,247.12/6,375 = 3,015.92/x
  3. Step 3: Cross multiply
    4,247.12x = 6,375 × 3,015.92
  4. Step 4: Simplify right side
    4,247.12x = 19,226,490
  5. Step 5: Solve for x
    x = 19,226,490/4,247.12
  6. Step 6: Final answer
    x = 4,526.95

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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.