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Finding the Fourth Proportional to 5,491.64, 8,251.50 and 3,184.76

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Solution

The fourth proportional to 5,491.64, 8,251.50 and 3,184.76 is: 4,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.64 : 8,251.50 = 3,184.76 : x
  2. Step 2: Convert to fraction form
    5,491.64/8,251.50 = 3,184.76/x
  3. Step 3: Cross multiply
    5,491.64x = 8,251.50 × 3,184.76
  4. Step 4: Simplify right side
    5,491.64x = 26,279,047.14
  5. Step 5: Solve for x
    x = 26,279,047.14/5,491.64
  6. Step 6: Final answer
    x = 4,785.28

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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.