Home / 5,240.10-7,231.77-2,882.58

Finding the Fourth Proportional to 5,240.10, 7,231.77 and 2,882.58

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Solution

The fourth proportional to 5,240.10, 7,231.77 and 2,882.58 is: 3,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.10 : 7,231.77 = 2,882.58 : x
  2. Step 2: Convert to fraction form
    5,240.10/7,231.77 = 2,882.58/x
  3. Step 3: Cross multiply
    5,240.10x = 7,231.77 × 2,882.58
  4. Step 4: Simplify right side
    5,240.10x = 20,846,155.57
  5. Step 5: Solve for x
    x = 20,846,155.57/5,240.10
  6. Step 6: Final answer
    x = 3,978.20

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1.5x scale

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.