Home / 1,251.20-1,878.40-1,194.48

Finding the Fourth Proportional to 1,251.20, 1,878.40 and 1,194.48

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Solution

The fourth proportional to 1,251.20, 1,878.40 and 1,194.48 is: 1,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.20 : 1,878.40 = 1,194.48 : x
  2. Step 2: Convert to fraction form
    1,251.20/1,878.40 = 1,194.48/x
  3. Step 3: Cross multiply
    1,251.20x = 1,878.40 × 1,194.48
  4. Step 4: Simplify right side
    1,251.20x = 2,243,711.23
  5. Step 5: Solve for x
    x = 2,243,711.23/1,251.20
  6. Step 6: Final answer
    x = 1,793.25

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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.