Home / 2,490.92-3,731.59-1,391.95

Finding the Fourth Proportional to 2,490.92, 3,731.59 and 1,391.95

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Solution

The fourth proportional to 2,490.92, 3,731.59 and 1,391.95 is: 2,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.92 : 3,731.59 = 1,391.95 : x
  2. Step 2: Convert to fraction form
    2,490.92/3,731.59 = 1,391.95/x
  3. Step 3: Cross multiply
    2,490.92x = 3,731.59 × 1,391.95
  4. Step 4: Simplify right side
    2,490.92x = 5,194,197.02
  5. Step 5: Solve for x
    x = 5,194,197.02/2,490.92
  6. Step 6: Final answer
    x = 2,085.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.