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Finding the Fourth Proportional to 1,627.78, 2,444.05 and 1,074.14

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Solution

The fourth proportional to 1,627.78, 2,444.05 and 1,074.14 is: 1,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.78 : 2,444.05 = 1,074.14 : x
  2. Step 2: Convert to fraction form
    1,627.78/2,444.05 = 1,074.14/x
  3. Step 3: Cross multiply
    1,627.78x = 2,444.05 × 1,074.14
  4. Step 4: Simplify right side
    1,627.78x = 2,625,251.87
  5. Step 5: Solve for x
    x = 2,625,251.87/1,627.78
  6. Step 6: Final answer
    x = 1,612.78

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