Home / 1,927.98-2,661.91-1,265.95

Finding the Fourth Proportional to 1,927.98, 2,661.91 and 1,265.95

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Solution

The fourth proportional to 1,927.98, 2,661.91 and 1,265.95 is: 1,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.98 : 2,661.91 = 1,265.95 : x
  2. Step 2: Convert to fraction form
    1,927.98/2,661.91 = 1,265.95/x
  3. Step 3: Cross multiply
    1,927.98x = 2,661.91 × 1,265.95
  4. Step 4: Simplify right side
    1,927.98x = 3,369,845.13
  5. Step 5: Solve for x
    x = 3,369,845.13/1,927.98
  6. Step 6: Final answer
    x = 1,747.86

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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.