Home / 3,143.52-4,333.08-2,512.05

Finding the Fourth Proportional to 3,143.52, 4,333.08 and 2,512.05

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Solution

The fourth proportional to 3,143.52, 4,333.08 and 2,512.05 is: 3,462.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.52 : 4,333.08 = 2,512.05 : x
  2. Step 2: Convert to fraction form
    3,143.52/4,333.08 = 2,512.05/x
  3. Step 3: Cross multiply
    3,143.52x = 4,333.08 × 2,512.05
  4. Step 4: Simplify right side
    3,143.52x = 10,884,913.61
  5. Step 5: Solve for x
    x = 10,884,913.61/3,143.52
  6. Step 6: Final answer
    x = 3,462.65

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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.