Home / 1,451.92-2,002.44-1,189.48

Finding the Fourth Proportional to 1,451.92, 2,002.44 and 1,189.48

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Solution

The fourth proportional to 1,451.92, 2,002.44 and 1,189.48 is: 1,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.92 : 2,002.44 = 1,189.48 : x
  2. Step 2: Convert to fraction form
    1,451.92/2,002.44 = 1,189.48/x
  3. Step 3: Cross multiply
    1,451.92x = 2,002.44 × 1,189.48
  4. Step 4: Simplify right side
    1,451.92x = 2,381,862.33
  5. Step 5: Solve for x
    x = 2,381,862.33/1,451.92
  6. Step 6: Final answer
    x = 1,640.49

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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.