Home / 5,125.47-7,073.90-3,135.70

Finding the Fourth Proportional to 5,125.47, 7,073.90 and 3,135.70

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Solution

The fourth proportional to 5,125.47, 7,073.90 and 3,135.70 is: 4,327.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.47 : 7,073.90 = 3,135.70 : x
  2. Step 2: Convert to fraction form
    5,125.47/7,073.90 = 3,135.70/x
  3. Step 3: Cross multiply
    5,125.47x = 7,073.90 × 3,135.70
  4. Step 4: Simplify right side
    5,125.47x = 22,181,628.23
  5. Step 5: Solve for x
    x = 22,181,628.23/5,125.47
  6. Step 6: Final answer
    x = 4,327.73

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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.