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Finding the Fourth Proportional to 6,471.37, 8,928.87 and 3,952.57

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Solution

The fourth proportional to 6,471.37, 8,928.87 and 3,952.57 is: 5,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.37 : 8,928.87 = 3,952.57 : x
  2. Step 2: Convert to fraction form
    6,471.37/8,928.87 = 3,952.57/x
  3. Step 3: Cross multiply
    6,471.37x = 8,928.87 × 3,952.57
  4. Step 4: Simplify right side
    6,471.37x = 35,291,983.70
  5. Step 5: Solve for x
    x = 35,291,983.70/6,471.37
  6. Step 6: Final answer
    x = 5,453.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.