Home / 2,581.44-3,878.49-1,657.38

Finding the Fourth Proportional to 2,581.44, 3,878.49 and 1,657.38

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Solution

The fourth proportional to 2,581.44, 3,878.49 and 1,657.38 is: 2,490.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.44 : 3,878.49 = 1,657.38 : x
  2. Step 2: Convert to fraction form
    2,581.44/3,878.49 = 1,657.38/x
  3. Step 3: Cross multiply
    2,581.44x = 3,878.49 × 1,657.38
  4. Step 4: Simplify right side
    2,581.44x = 6,428,131.76
  5. Step 5: Solve for x
    x = 6,428,131.76/2,581.44
  6. Step 6: Final answer
    x = 2,490.13

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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.