Home / 5,125.31-7,073.07-3,135.83

Finding the Fourth Proportional to 5,125.31, 7,073.07 and 3,135.83

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Solution

The fourth proportional to 5,125.31, 7,073.07 and 3,135.83 is: 4,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.31 : 7,073.07 = 3,135.83 : x
  2. Step 2: Convert to fraction form
    5,125.31/7,073.07 = 3,135.83/x
  3. Step 3: Cross multiply
    5,125.31x = 7,073.07 × 3,135.83
  4. Step 4: Simplify right side
    5,125.31x = 22,179,945.10
  5. Step 5: Solve for x
    x = 22,179,945.10/5,125.31
  6. Step 6: Final answer
    x = 4,327.53

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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.