Home / 1,927.91-2,661.66-1,265.92

Finding the Fourth Proportional to 1,927.91, 2,661.66 and 1,265.92

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Solution

The fourth proportional to 1,927.91, 2,661.66 and 1,265.92 is: 1,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.91 : 2,661.66 = 1,265.92 : x
  2. Step 2: Convert to fraction form
    1,927.91/2,661.66 = 1,265.92/x
  3. Step 3: Cross multiply
    1,927.91x = 2,661.66 × 1,265.92
  4. Step 4: Simplify right side
    1,927.91x = 3,369,451.95
  5. Step 5: Solve for x
    x = 3,369,451.95/1,927.91
  6. Step 6: Final answer
    x = 1,747.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.