Home / 2,518.09-3,474.90-1,398.97

Finding the Fourth Proportional to 2,518.09, 3,474.90 and 1,398.97

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Solution

The fourth proportional to 2,518.09, 3,474.90 and 1,398.97 is: 1,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.09 : 3,474.90 = 1,398.97 : x
  2. Step 2: Convert to fraction form
    2,518.09/3,474.90 = 1,398.97/x
  3. Step 3: Cross multiply
    2,518.09x = 3,474.90 × 1,398.97
  4. Step 4: Simplify right side
    2,518.09x = 4,861,285.20
  5. Step 5: Solve for x
    x = 4,861,285.20/2,518.09
  6. Step 6: Final answer
    x = 1,930.55

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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.