Home / 2,454.30-3,390.76-2,257.47

Finding the Fourth Proportional to 2,454.30, 3,390.76 and 2,257.47

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Solution

The fourth proportional to 2,454.30, 3,390.76 and 2,257.47 is: 3,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.30 : 3,390.76 = 2,257.47 : x
  2. Step 2: Convert to fraction form
    2,454.30/3,390.76 = 2,257.47/x
  3. Step 3: Cross multiply
    2,454.30x = 3,390.76 × 2,257.47
  4. Step 4: Simplify right side
    2,454.30x = 7,654,541.80
  5. Step 5: Solve for x
    x = 7,654,541.80/2,454.30
  6. Step 6: Final answer
    x = 3,118.83

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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.