Home / 3,142.13-4,339.78-2,092.37

Finding the Fourth Proportional to 3,142.13, 4,339.78 and 2,092.37

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Solution

The fourth proportional to 3,142.13, 4,339.78 and 2,092.37 is: 2,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.13 : 4,339.78 = 2,092.37 : x
  2. Step 2: Convert to fraction form
    3,142.13/4,339.78 = 2,092.37/x
  3. Step 3: Cross multiply
    3,142.13x = 4,339.78 × 2,092.37
  4. Step 4: Simplify right side
    3,142.13x = 9,080,398.55
  5. Step 5: Solve for x
    x = 9,080,398.55/3,142.13
  6. Step 6: Final answer
    x = 2,889.89

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1.5x scale

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.