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Finding the Fourth Proportional to 4,275.64, 6,414 and 1,352.89

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Solution

The fourth proportional to 4,275.64, 6,414 and 1,352.89 is: 2,029.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275.64 : 6,414 = 1,352.89 : x
  2. Step 2: Convert to fraction form
    4,275.64/6,414 = 1,352.89/x
  3. Step 3: Cross multiply
    4,275.64x = 6,414 × 1,352.89
  4. Step 4: Simplify right side
    4,275.64x = 8,677,436.46
  5. Step 5: Solve for x
    x = 8,677,436.46/4,275.64
  6. Step 6: Final answer
    x = 2,029.51

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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.