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Finding the Fourth Proportional to 2,230.97, 3,347.97 and 1,191.72

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Solution

The fourth proportional to 2,230.97, 3,347.97 and 1,191.72 is: 1,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.97 : 3,347.97 = 1,191.72 : x
  2. Step 2: Convert to fraction form
    2,230.97/3,347.97 = 1,191.72/x
  3. Step 3: Cross multiply
    2,230.97x = 3,347.97 × 1,191.72
  4. Step 4: Simplify right side
    2,230.97x = 3,989,851.53
  5. Step 5: Solve for x
    x = 3,989,851.53/2,230.97
  6. Step 6: Final answer
    x = 1,788.39

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1.5x scale

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.