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Finding the Fourth Proportional to 6,471.90, 8,935.32 and 4,481.72

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Solution

The fourth proportional to 6,471.90, 8,935.32 and 4,481.72 is: 6,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.90 : 8,935.32 = 4,481.72 : x
  2. Step 2: Convert to fraction form
    6,471.90/8,935.32 = 4,481.72/x
  3. Step 3: Cross multiply
    6,471.90x = 8,935.32 × 4,481.72
  4. Step 4: Simplify right side
    6,471.90x = 40,045,602.35
  5. Step 5: Solve for x
    x = 40,045,602.35/6,471.90
  6. Step 6: Final answer
    x = 6,187.61

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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.