Home / 1,867.29-2,576.70-1,081.38

Finding the Fourth Proportional to 1,867.29, 2,576.70 and 1,081.38

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Solution

The fourth proportional to 1,867.29, 2,576.70 and 1,081.38 is: 1,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.29 : 2,576.70 = 1,081.38 : x
  2. Step 2: Convert to fraction form
    1,867.29/2,576.70 = 1,081.38/x
  3. Step 3: Cross multiply
    1,867.29x = 2,576.70 × 1,081.38
  4. Step 4: Simplify right side
    1,867.29x = 2,786,391.85
  5. Step 5: Solve for x
    x = 2,786,391.85/1,867.29
  6. Step 6: Final answer
    x = 1,492.21

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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.