Home / 1,245.41-1,874.60-1,057.49

Finding the Fourth Proportional to 1,245.41, 1,874.60 and 1,057.49

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Solution

The fourth proportional to 1,245.41, 1,874.60 and 1,057.49 is: 1,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.41 : 1,874.60 = 1,057.49 : x
  2. Step 2: Convert to fraction form
    1,245.41/1,874.60 = 1,057.49/x
  3. Step 3: Cross multiply
    1,245.41x = 1,874.60 × 1,057.49
  4. Step 4: Simplify right side
    1,245.41x = 1,982,370.75
  5. Step 5: Solve for x
    x = 1,982,370.75/1,245.41
  6. Step 6: Final answer
    x = 1,591.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.