Home / 1,285.22-1,926.80-1,182.69

Finding the Fourth Proportional to 1,285.22, 1,926.80 and 1,182.69

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Solution

The fourth proportional to 1,285.22, 1,926.80 and 1,182.69 is: 1,773.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.22 : 1,926.80 = 1,182.69 : x
  2. Step 2: Convert to fraction form
    1,285.22/1,926.80 = 1,182.69/x
  3. Step 3: Cross multiply
    1,285.22x = 1,926.80 × 1,182.69
  4. Step 4: Simplify right side
    1,285.22x = 2,278,805.61
  5. Step 5: Solve for x
    x = 2,278,805.61/1,285.22
  6. Step 6: Final answer
    x = 1,773.08

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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.