Home / 2,780.13-4,169.37-2,291.97

Finding the Fourth Proportional to 2,780.13, 4,169.37 and 2,291.97

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Solution

The fourth proportional to 2,780.13, 4,169.37 and 2,291.97 is: 3,437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.13 : 4,169.37 = 2,291.97 : x
  2. Step 2: Convert to fraction form
    2,780.13/4,169.37 = 2,291.97/x
  3. Step 3: Cross multiply
    2,780.13x = 4,169.37 × 2,291.97
  4. Step 4: Simplify right side
    2,780.13x = 9,556,070.96
  5. Step 5: Solve for x
    x = 9,556,070.96/2,780.13
  6. Step 6: Final answer
    x = 3,437.27

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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.