Home / 5,381.42-8,040.97-4,125.14

Finding the Fourth Proportional to 5,381.42, 8,040.97 and 4,125.14

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Solution

The fourth proportional to 5,381.42, 8,040.97 and 4,125.14 is: 6,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.42 : 8,040.97 = 4,125.14 : x
  2. Step 2: Convert to fraction form
    5,381.42/8,040.97 = 4,125.14/x
  3. Step 3: Cross multiply
    5,381.42x = 8,040.97 × 4,125.14
  4. Step 4: Simplify right side
    5,381.42x = 33,170,126.99
  5. Step 5: Solve for x
    x = 33,170,126.99/5,381.42
  6. Step 6: Final answer
    x = 6,163.82

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Half scale
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Double scale
Find fourth proportional to 5,382.42, 8,042.46 and 4,126.14
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.