Home / 3,440.13-5,147.85-2,979.48

Finding the Fourth Proportional to 3,440.13, 5,147.85 and 2,979.48

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Solution

The fourth proportional to 3,440.13, 5,147.85 and 2,979.48 is: 4,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.13 : 5,147.85 = 2,979.48 : x
  2. Step 2: Convert to fraction form
    3,440.13/5,147.85 = 2,979.48/x
  3. Step 3: Cross multiply
    3,440.13x = 5,147.85 × 2,979.48
  4. Step 4: Simplify right side
    3,440.13x = 15,337,916.12
  5. Step 5: Solve for x
    x = 15,337,916.12/3,440.13
  6. Step 6: Final answer
    x = 4,458.53

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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.