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Finding the Fourth Proportional to 2,245.71, 3,099.11 and 1,251.06

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Solution

The fourth proportional to 2,245.71, 3,099.11 and 1,251.06 is: 1,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.71 : 3,099.11 = 1,251.06 : x
  2. Step 2: Convert to fraction form
    2,245.71/3,099.11 = 1,251.06/x
  3. Step 3: Cross multiply
    2,245.71x = 3,099.11 × 1,251.06
  4. Step 4: Simplify right side
    2,245.71x = 3,877,172.56
  5. Step 5: Solve for x
    x = 3,877,172.56/2,245.71
  6. Step 6: Final answer
    x = 1,726.48

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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.