Home / 2,712.72-4,067.19-1,543.49

Finding the Fourth Proportional to 2,712.72, 4,067.19 and 1,543.49

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Solution

The fourth proportional to 2,712.72, 4,067.19 and 1,543.49 is: 2,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.72 : 4,067.19 = 1,543.49 : x
  2. Step 2: Convert to fraction form
    2,712.72/4,067.19 = 1,543.49/x
  3. Step 3: Cross multiply
    2,712.72x = 4,067.19 × 1,543.49
  4. Step 4: Simplify right side
    2,712.72x = 6,277,646.76
  5. Step 5: Solve for x
    x = 6,277,646.76/2,712.72
  6. Step 6: Final answer
    x = 2,314.15

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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.