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Finding the Fourth Proportional to 2,168.57, 3,248.10 and 1,344.40

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Solution

The fourth proportional to 2,168.57, 3,248.10 and 1,344.40 is: 2,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.57 : 3,248.10 = 1,344.40 : x
  2. Step 2: Convert to fraction form
    2,168.57/3,248.10 = 1,344.40/x
  3. Step 3: Cross multiply
    2,168.57x = 3,248.10 × 1,344.40
  4. Step 4: Simplify right side
    2,168.57x = 4,366,737.52
  5. Step 5: Solve for x
    x = 4,366,737.52/2,168.57
  6. Step 6: Final answer
    x = 2,013.65

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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.