Home / 3,138.93-4,332.63-2,513.82

Finding the Fourth Proportional to 3,138.93, 4,332.63 and 2,513.82

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Solution

The fourth proportional to 3,138.93, 4,332.63 and 2,513.82 is: 3,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.93 : 4,332.63 = 2,513.82 : x
  2. Step 2: Convert to fraction form
    3,138.93/4,332.63 = 2,513.82/x
  3. Step 3: Cross multiply
    3,138.93x = 4,332.63 × 2,513.82
  4. Step 4: Simplify right side
    3,138.93x = 10,891,451.95
  5. Step 5: Solve for x
    x = 10,891,451.95/3,138.93
  6. Step 6: Final answer
    x = 3,469.80

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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.