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Finding the Fourth Proportional to 1,469.56, 2,201.52 and 912.62

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Solution

The fourth proportional to 1,469.56, 2,201.52 and 912.62 is: 1,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.56 : 2,201.52 = 912.62 : x
  2. Step 2: Convert to fraction form
    1,469.56/2,201.52 = 912.62/x
  3. Step 3: Cross multiply
    1,469.56x = 2,201.52 × 912.62
  4. Step 4: Simplify right side
    1,469.56x = 2,009,140.17
  5. Step 5: Solve for x
    x = 2,009,140.17/1,469.56
  6. Step 6: Final answer
    x = 1,367.17

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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.