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Finding the Fourth Proportional to 3,264.68, 4,869.46 and 2,772.20

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Solution

The fourth proportional to 3,264.68, 4,869.46 and 2,772.20 is: 4,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.68 : 4,869.46 = 2,772.20 : x
  2. Step 2: Convert to fraction form
    3,264.68/4,869.46 = 2,772.20/x
  3. Step 3: Cross multiply
    3,264.68x = 4,869.46 × 2,772.20
  4. Step 4: Simplify right side
    3,264.68x = 13,499,117.01
  5. Step 5: Solve for x
    x = 13,499,117.01/3,264.68
  6. Step 6: Final answer
    x = 4,134.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.