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Finding the Fourth Proportional to 1,468.87, 2,202.36 and 818.71

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Solution

The fourth proportional to 1,468.87, 2,202.36 and 818.71 is: 1,227.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.87 : 2,202.36 = 818.71 : x
  2. Step 2: Convert to fraction form
    1,468.87/2,202.36 = 818.71/x
  3. Step 3: Cross multiply
    1,468.87x = 2,202.36 × 818.71
  4. Step 4: Simplify right side
    1,468.87x = 1,803,094.16
  5. Step 5: Solve for x
    x = 1,803,094.16/1,468.87
  6. Step 6: Final answer
    x = 1,227.54

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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.