Home / 2,809.62-3,877.30-1,550.65

Finding the Fourth Proportional to 2,809.62, 3,877.30 and 1,550.65

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Solution

The fourth proportional to 2,809.62, 3,877.30 and 1,550.65 is: 2,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.62 : 3,877.30 = 1,550.65 : x
  2. Step 2: Convert to fraction form
    2,809.62/3,877.30 = 1,550.65/x
  3. Step 3: Cross multiply
    2,809.62x = 3,877.30 × 1,550.65
  4. Step 4: Simplify right side
    2,809.62x = 6,012,335.25
  5. Step 5: Solve for x
    x = 6,012,335.25/2,809.62
  6. Step 6: Final answer
    x = 2,139.91

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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.