Home / 3,402.72-5,101.36-3,129.36

Finding the Fourth Proportional to 3,402.72, 5,101.36 and 3,129.36

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Solution

The fourth proportional to 3,402.72, 5,101.36 and 3,129.36 is: 4,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.72 : 5,101.36 = 3,129.36 : x
  2. Step 2: Convert to fraction form
    3,402.72/5,101.36 = 3,129.36/x
  3. Step 3: Cross multiply
    3,402.72x = 5,101.36 × 3,129.36
  4. Step 4: Simplify right side
    3,402.72x = 15,963,991.93
  5. Step 5: Solve for x
    x = 15,963,991.93/3,402.72
  6. Step 6: Final answer
    x = 4,691.54

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1.5x scale

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.