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Finding the Fourth Proportional to 5,381.82, 8,073.18 and 1,486.22

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Solution

The fourth proportional to 5,381.82, 8,073.18 and 1,486.22 is: 2,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.82 : 8,073.18 = 1,486.22 : x
  2. Step 2: Convert to fraction form
    5,381.82/8,073.18 = 1,486.22/x
  3. Step 3: Cross multiply
    5,381.82x = 8,073.18 × 1,486.22
  4. Step 4: Simplify right side
    5,381.82x = 11,998,521.58
  5. Step 5: Solve for x
    x = 11,998,521.58/5,381.82
  6. Step 6: Final answer
    x = 2,229.45

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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.