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Finding the Fourth Proportional to 5,839.95, 8,759.94 and 3,878.13

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Solution

The fourth proportional to 5,839.95, 8,759.94 and 3,878.13 is: 5,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,839.95 : 8,759.94 = 3,878.13 : x
  2. Step 2: Convert to fraction form
    5,839.95/8,759.94 = 3,878.13/x
  3. Step 3: Cross multiply
    5,839.95x = 8,759.94 × 3,878.13
  4. Step 4: Simplify right side
    5,839.95x = 33,972,186.11
  5. Step 5: Solve for x
    x = 33,972,186.11/5,839.95
  6. Step 6: Final answer
    x = 5,817.20

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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.