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Finding the Fourth Proportional to 3,640.95, 5,461.43 and 2,253.42

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Solution

The fourth proportional to 3,640.95, 5,461.43 and 2,253.42 is: 3,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.95 : 5,461.43 = 2,253.42 : x
  2. Step 2: Convert to fraction form
    3,640.95/5,461.43 = 2,253.42/x
  3. Step 3: Cross multiply
    3,640.95x = 5,461.43 × 2,253.42
  4. Step 4: Simplify right side
    3,640.95x = 12,306,884.32
  5. Step 5: Solve for x
    x = 12,306,884.32/3,640.95
  6. Step 6: Final answer
    x = 3,380.13

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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.