Home / 1,273.32-1,909.98-1,151.82

Finding the Fourth Proportional to 1,273.32, 1,909.98 and 1,151.82

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Solution

The fourth proportional to 1,273.32, 1,909.98 and 1,151.82 is: 1,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.32 : 1,909.98 = 1,151.82 : x
  2. Step 2: Convert to fraction form
    1,273.32/1,909.98 = 1,151.82/x
  3. Step 3: Cross multiply
    1,273.32x = 1,909.98 × 1,151.82
  4. Step 4: Simplify right side
    1,273.32x = 2,199,953.16
  5. Step 5: Solve for x
    x = 2,199,953.16/1,273.32
  6. Step 6: Final answer
    x = 1,727.73

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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.