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Finding the Fourth Proportional to 2,490.82, 3,717.02 and 2,179.17

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Solution

The fourth proportional to 2,490.82, 3,717.02 and 2,179.17 is: 3,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.82 : 3,717.02 = 2,179.17 : x
  2. Step 2: Convert to fraction form
    2,490.82/3,717.02 = 2,179.17/x
  3. Step 3: Cross multiply
    2,490.82x = 3,717.02 × 2,179.17
  4. Step 4: Simplify right side
    2,490.82x = 8,100,023.92
  5. Step 5: Solve for x
    x = 8,100,023.92/2,490.82
  6. Step 6: Final answer
    x = 3,251.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.