Home / 3,390.18-5,112.24-3,343.92

Finding the Fourth Proportional to 3,390.18, 5,112.24 and 3,343.92

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Solution

The fourth proportional to 3,390.18, 5,112.24 and 3,343.92 is: 5,042.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.18 : 5,112.24 = 3,343.92 : x
  2. Step 2: Convert to fraction form
    3,390.18/5,112.24 = 3,343.92/x
  3. Step 3: Cross multiply
    3,390.18x = 5,112.24 × 3,343.92
  4. Step 4: Simplify right side
    3,390.18x = 17,094,921.58
  5. Step 5: Solve for x
    x = 17,094,921.58/3,390.18
  6. Step 6: Final answer
    x = 5,042.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.