Home / 1,549.78-2,139.42-1,052.44

Finding the Fourth Proportional to 1,549.78, 2,139.42 and 1,052.44

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Solution

The fourth proportional to 1,549.78, 2,139.42 and 1,052.44 is: 1,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.78 : 2,139.42 = 1,052.44 : x
  2. Step 2: Convert to fraction form
    1,549.78/2,139.42 = 1,052.44/x
  3. Step 3: Cross multiply
    1,549.78x = 2,139.42 × 1,052.44
  4. Step 4: Simplify right side
    1,549.78x = 2,251,611.18
  5. Step 5: Solve for x
    x = 2,251,611.18/1,549.78
  6. Step 6: Final answer
    x = 1,452.86

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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.