Home / 1,191.00-1,786.35-574.54

Finding the Fourth Proportional to 1,191.00, 1,786.35 and 574.54

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Solution

The fourth proportional to 1,191.00, 1,786.35 and 574.54 is: 861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.00 : 1,786.35 = 574.54 : x
  2. Step 2: Convert to fraction form
    1,191.00/1,786.35 = 574.54/x
  3. Step 3: Cross multiply
    1,191.00x = 1,786.35 × 574.54
  4. Step 4: Simplify right side
    1,191.00x = 1,026,337.27
  5. Step 5: Solve for x
    x = 1,026,337.27/1,191.00
  6. Step 6: Final answer
    x = 861.74

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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.