Home / 3,839.72-5,760.05-1,374.80

Finding the Fourth Proportional to 3,839.72, 5,760.05 and 1,374.80

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Solution

The fourth proportional to 3,839.72, 5,760.05 and 1,374.80 is: 2,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.72 : 5,760.05 = 1,374.80 : x
  2. Step 2: Convert to fraction form
    3,839.72/5,760.05 = 1,374.80/x
  3. Step 3: Cross multiply
    3,839.72x = 5,760.05 × 1,374.80
  4. Step 4: Simplify right side
    3,839.72x = 7,918,881.07
  5. Step 5: Solve for x
    x = 7,918,881.07/3,839.72
  6. Step 6: Final answer
    x = 2,062.36

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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.