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Finding the Fourth Proportional to 4,645.28, 6,972.84 and 4,540.88

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Solution

The fourth proportional to 4,645.28, 6,972.84 and 4,540.88 is: 6,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.28 : 6,972.84 = 4,540.88 : x
  2. Step 2: Convert to fraction form
    4,645.28/6,972.84 = 4,540.88/x
  3. Step 3: Cross multiply
    4,645.28x = 6,972.84 × 4,540.88
  4. Step 4: Simplify right side
    4,645.28x = 31,662,829.70
  5. Step 5: Solve for x
    x = 31,662,829.70/4,645.28
  6. Step 6: Final answer
    x = 6,816.13

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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.