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Finding the Fourth Proportional to 3,351.40, 5,026.62 and 886

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Solution

The fourth proportional to 3,351.40, 5,026.62 and 886 is: 1,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.40 : 5,026.62 = 886 : x
  2. Step 2: Convert to fraction form
    3,351.40/5,026.62 = 886/x
  3. Step 3: Cross multiply
    3,351.40x = 5,026.62 × 886
  4. Step 4: Simplify right side
    3,351.40x = 4,453,585.32
  5. Step 5: Solve for x
    x = 4,453,585.32/3,351.40
  6. Step 6: Final answer
    x = 1,328.87

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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.