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Finding the Fourth Proportional to 5,721.76, 8,576.88 and 2,255.52

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Solution

The fourth proportional to 5,721.76, 8,576.88 and 2,255.52 is: 3,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.76 : 8,576.88 = 2,255.52 : x
  2. Step 2: Convert to fraction form
    5,721.76/8,576.88 = 2,255.52/x
  3. Step 3: Cross multiply
    5,721.76x = 8,576.88 × 2,255.52
  4. Step 4: Simplify right side
    5,721.76x = 19,345,324.38
  5. Step 5: Solve for x
    x = 19,345,324.38/5,721.76
  6. Step 6: Final answer
    x = 3,381.01

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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.