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Finding the Fourth Proportional to 6,649.78, 9,974.97 and 2,488.71

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Solution

The fourth proportional to 6,649.78, 9,974.97 and 2,488.71 is: 3,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.78 : 9,974.97 = 2,488.71 : x
  2. Step 2: Convert to fraction form
    6,649.78/9,974.97 = 2,488.71/x
  3. Step 3: Cross multiply
    6,649.78x = 9,974.97 × 2,488.71
  4. Step 4: Simplify right side
    6,649.78x = 24,824,807.59
  5. Step 5: Solve for x
    x = 24,824,807.59/6,649.78
  6. Step 6: Final answer
    x = 3,733.18

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1.5x scale

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.