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Finding the Fourth Proportional to 3,966.48, 5,951.16 and 3,240.72

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Solution

The fourth proportional to 3,966.48, 5,951.16 and 3,240.72 is: 4,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.48 : 5,951.16 = 3,240.72 : x
  2. Step 2: Convert to fraction form
    3,966.48/5,951.16 = 3,240.72/x
  3. Step 3: Cross multiply
    3,966.48x = 5,951.16 × 3,240.72
  4. Step 4: Simplify right side
    3,966.48x = 19,286,043.24
  5. Step 5: Solve for x
    x = 19,286,043.24/3,966.48
  6. Step 6: Final answer
    x = 4,862.26

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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.