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Finding the Fourth Proportional to 5,581.36, 8,368.74 and 1,882.66

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Solution

The fourth proportional to 5,581.36, 8,368.74 and 1,882.66 is: 2,822.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.36 : 8,368.74 = 1,882.66 : x
  2. Step 2: Convert to fraction form
    5,581.36/8,368.74 = 1,882.66/x
  3. Step 3: Cross multiply
    5,581.36x = 8,368.74 × 1,882.66
  4. Step 4: Simplify right side
    5,581.36x = 15,755,492.05
  5. Step 5: Solve for x
    x = 15,755,492.05/5,581.36
  6. Step 6: Final answer
    x = 2,822.88

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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.