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Finding the Fourth Proportional to 5,326.71, 7,990.11 and 1,863.96

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Solution

The fourth proportional to 5,326.71, 7,990.11 and 1,863.96 is: 2,795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.71 : 7,990.11 = 1,863.96 : x
  2. Step 2: Convert to fraction form
    5,326.71/7,990.11 = 1,863.96/x
  3. Step 3: Cross multiply
    5,326.71x = 7,990.11 × 1,863.96
  4. Step 4: Simplify right side
    5,326.71x = 14,893,245.44
  5. Step 5: Solve for x
    x = 14,893,245.44/5,326.71
  6. Step 6: Final answer
    x = 2,795.96

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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.