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Finding the Fourth Proportional to 1,447.66, 2,169.06 and 898.48

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Solution

The fourth proportional to 1,447.66, 2,169.06 and 898.48 is: 1,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.66 : 2,169.06 = 898.48 : x
  2. Step 2: Convert to fraction form
    1,447.66/2,169.06 = 898.48/x
  3. Step 3: Cross multiply
    1,447.66x = 2,169.06 × 898.48
  4. Step 4: Simplify right side
    1,447.66x = 1,948,857.03
  5. Step 5: Solve for x
    x = 1,948,857.03/1,447.66
  6. Step 6: Final answer
    x = 1,346.21

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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.