Home / 1,976.15-2,726.98-1,091.90

Finding the Fourth Proportional to 1,976.15, 2,726.98 and 1,091.90

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Solution

The fourth proportional to 1,976.15, 2,726.98 and 1,091.90 is: 1,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.15 : 2,726.98 = 1,091.90 : x
  2. Step 2: Convert to fraction form
    1,976.15/2,726.98 = 1,091.90/x
  3. Step 3: Cross multiply
    1,976.15x = 2,726.98 × 1,091.90
  4. Step 4: Simplify right side
    1,976.15x = 2,977,589.46
  5. Step 5: Solve for x
    x = 2,977,589.46/1,976.15
  6. Step 6: Final answer
    x = 1,506.76

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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.