Home / 2,639.48-3,641.91-1,576.95

Finding the Fourth Proportional to 2,639.48, 3,641.91 and 1,576.95

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Solution

The fourth proportional to 2,639.48, 3,641.91 and 1,576.95 is: 2,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.48 : 3,641.91 = 1,576.95 : x
  2. Step 2: Convert to fraction form
    2,639.48/3,641.91 = 1,576.95/x
  3. Step 3: Cross multiply
    2,639.48x = 3,641.91 × 1,576.95
  4. Step 4: Simplify right side
    2,639.48x = 5,743,109.97
  5. Step 5: Solve for x
    x = 5,743,109.97/2,639.48
  6. Step 6: Final answer
    x = 2,175.85

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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.