Home / 5,240.31-7,231.49-2,882.46

Finding the Fourth Proportional to 5,240.31, 7,231.49 and 2,882.46

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Solution

The fourth proportional to 5,240.31, 7,231.49 and 2,882.46 is: 3,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.31 : 7,231.49 = 2,882.46 : x
  2. Step 2: Convert to fraction form
    5,240.31/7,231.49 = 2,882.46/x
  3. Step 3: Cross multiply
    5,240.31x = 7,231.49 × 2,882.46
  4. Step 4: Simplify right side
    5,240.31x = 20,844,430.10
  5. Step 5: Solve for x
    x = 20,844,430.10/5,240.31
  6. Step 6: Final answer
    x = 3,977.71

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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.