Home / 2,517.96-3,474.58-1,398.76

Finding the Fourth Proportional to 2,517.96, 3,474.58 and 1,398.76

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Solution

The fourth proportional to 2,517.96, 3,474.58 and 1,398.76 is: 1,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.96 : 3,474.58 = 1,398.76 : x
  2. Step 2: Convert to fraction form
    2,517.96/3,474.58 = 1,398.76/x
  3. Step 3: Cross multiply
    2,517.96x = 3,474.58 × 1,398.76
  4. Step 4: Simplify right side
    2,517.96x = 4,860,103.52
  5. Step 5: Solve for x
    x = 4,860,103.52/2,517.96
  6. Step 6: Final answer
    x = 1,930.18

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Half scale
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Double scale
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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.