Home / 5,250.29-7,245.11-3,128.22

Finding the Fourth Proportional to 5,250.29, 7,245.11 and 3,128.22

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Solution

The fourth proportional to 5,250.29, 7,245.11 and 3,128.22 is: 4,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.29 : 7,245.11 = 3,128.22 : x
  2. Step 2: Convert to fraction form
    5,250.29/7,245.11 = 3,128.22/x
  3. Step 3: Cross multiply
    5,250.29x = 7,245.11 × 3,128.22
  4. Step 4: Simplify right side
    5,250.29x = 22,664,305.82
  5. Step 5: Solve for x
    x = 22,664,305.82/5,250.29
  6. Step 6: Final answer
    x = 4,316.78

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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.