Home / 3,913.16-5,399.87-2,144.75

Finding the Fourth Proportional to 3,913.16, 5,399.87 and 2,144.75

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Solution

The fourth proportional to 3,913.16, 5,399.87 and 2,144.75 is: 2,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.16 : 5,399.87 = 2,144.75 : x
  2. Step 2: Convert to fraction form
    3,913.16/5,399.87 = 2,144.75/x
  3. Step 3: Cross multiply
    3,913.16x = 5,399.87 × 2,144.75
  4. Step 4: Simplify right side
    3,913.16x = 11,581,333.46
  5. Step 5: Solve for x
    x = 11,581,333.46/3,913.16
  6. Step 6: Final answer
    x = 2,959.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.