Home / 2,169.16-3,247.34-1,344.78

Finding the Fourth Proportional to 2,169.16, 3,247.34 and 1,344.78

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Solution

The fourth proportional to 2,169.16, 3,247.34 and 1,344.78 is: 2,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.16 : 3,247.34 = 1,344.78 : x
  2. Step 2: Convert to fraction form
    2,169.16/3,247.34 = 1,344.78/x
  3. Step 3: Cross multiply
    2,169.16x = 3,247.34 × 1,344.78
  4. Step 4: Simplify right side
    2,169.16x = 4,366,957.89
  5. Step 5: Solve for x
    x = 4,366,957.89/2,169.16
  6. Step 6: Final answer
    x = 2,013.20

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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.