Home / 1,191.11-1,788.48-1,169.24

Finding the Fourth Proportional to 1,191.11, 1,788.48 and 1,169.24

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Solution

The fourth proportional to 1,191.11, 1,788.48 and 1,169.24 is: 1,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.11 : 1,788.48 = 1,169.24 : x
  2. Step 2: Convert to fraction form
    1,191.11/1,788.48 = 1,169.24/x
  3. Step 3: Cross multiply
    1,191.11x = 1,788.48 × 1,169.24
  4. Step 4: Simplify right side
    1,191.11x = 2,091,153.41
  5. Step 5: Solve for x
    x = 2,091,153.41/1,191.11
  6. Step 6: Final answer
    x = 1,755.64

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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.