Home / 3,839.20-5,767.02-3,255.40

Finding the Fourth Proportional to 3,839.20, 5,767.02 and 3,255.40

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Solution

The fourth proportional to 3,839.20, 5,767.02 and 3,255.40 is: 4,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.20 : 5,767.02 = 3,255.40 : x
  2. Step 2: Convert to fraction form
    3,839.20/5,767.02 = 3,255.40/x
  3. Step 3: Cross multiply
    3,839.20x = 5,767.02 × 3,255.40
  4. Step 4: Simplify right side
    3,839.20x = 18,773,956.91
  5. Step 5: Solve for x
    x = 18,773,956.91/3,839.20
  6. Step 6: Final answer
    x = 4,890.07

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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.