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Finding the Fourth Proportional to 1,446.26, 1,994.90 and 886.53

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Solution

The fourth proportional to 1,446.26, 1,994.90 and 886.53 is: 1,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.26 : 1,994.90 = 886.53 : x
  2. Step 2: Convert to fraction form
    1,446.26/1,994.90 = 886.53/x
  3. Step 3: Cross multiply
    1,446.26x = 1,994.90 × 886.53
  4. Step 4: Simplify right side
    1,446.26x = 1,768,538.70
  5. Step 5: Solve for x
    x = 1,768,538.70/1,446.26
  6. Step 6: Final answer
    x = 1,222.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.