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Finding the Fourth Proportional to 2,559.68, 3,839.28 and 827.36

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Solution

The fourth proportional to 2,559.68, 3,839.28 and 827.36 is: 1,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.68 : 3,839.28 = 827.36 : x
  2. Step 2: Convert to fraction form
    2,559.68/3,839.28 = 827.36/x
  3. Step 3: Cross multiply
    2,559.68x = 3,839.28 × 827.36
  4. Step 4: Simplify right side
    2,559.68x = 3,176,466.70
  5. Step 5: Solve for x
    x = 3,176,466.70/2,559.68
  6. Step 6: Final answer
    x = 1,240.96

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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.