Home / 2,517.67-3,474.81-1,398.98

Finding the Fourth Proportional to 2,517.67, 3,474.81 and 1,398.98

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Solution

The fourth proportional to 2,517.67, 3,474.81 and 1,398.98 is: 1,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.67 : 3,474.81 = 1,398.98 : x
  2. Step 2: Convert to fraction form
    2,517.67/3,474.81 = 1,398.98/x
  3. Step 3: Cross multiply
    2,517.67x = 3,474.81 × 1,398.98
  4. Step 4: Simplify right side
    2,517.67x = 4,861,165.32
  5. Step 5: Solve for x
    x = 4,861,165.32/2,517.67
  6. Step 6: Final answer
    x = 1,930.82

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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.