Home / 3,839.80-5,759.08-1,374.20

Finding the Fourth Proportional to 3,839.80, 5,759.08 and 1,374.20

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Solution

The fourth proportional to 3,839.80, 5,759.08 and 1,374.20 is: 2,061.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.80 : 5,759.08 = 1,374.20 : x
  2. Step 2: Convert to fraction form
    3,839.80/5,759.08 = 1,374.20/x
  3. Step 3: Cross multiply
    3,839.80x = 5,759.08 × 1,374.20
  4. Step 4: Simplify right side
    3,839.80x = 7,914,127.74
  5. Step 5: Solve for x
    x = 7,914,127.74/3,839.80
  6. Step 6: Final answer
    x = 2,061.08

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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.