Home / 2,675.19-4,010.11-1,288.13

Finding the Fourth Proportional to 2,675.19, 4,010.11 and 1,288.13

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Solution

The fourth proportional to 2,675.19, 4,010.11 and 1,288.13 is: 1,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.19 : 4,010.11 = 1,288.13 : x
  2. Step 2: Convert to fraction form
    2,675.19/4,010.11 = 1,288.13/x
  3. Step 3: Cross multiply
    2,675.19x = 4,010.11 × 1,288.13
  4. Step 4: Simplify right side
    2,675.19x = 5,165,542.99
  5. Step 5: Solve for x
    x = 5,165,542.99/2,675.19
  6. Step 6: Final answer
    x = 1,930.91

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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.