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Finding the Fourth Proportional to 2,913.42, 4,370.63 and 1,067.12

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Solution

The fourth proportional to 2,913.42, 4,370.63 and 1,067.12 is: 1,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.42 : 4,370.63 = 1,067.12 : x
  2. Step 2: Convert to fraction form
    2,913.42/4,370.63 = 1,067.12/x
  3. Step 3: Cross multiply
    2,913.42x = 4,370.63 × 1,067.12
  4. Step 4: Simplify right side
    2,913.42x = 4,663,959.50
  5. Step 5: Solve for x
    x = 4,663,959.50/2,913.42
  6. Step 6: Final answer
    x = 1,600.85

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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.