Home / 2,781.91-3,837.36-1,837.71

Finding the Fourth Proportional to 2,781.91, 3,837.36 and 1,837.71

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Solution

The fourth proportional to 2,781.91, 3,837.36 and 1,837.71 is: 2,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.91 : 3,837.36 = 1,837.71 : x
  2. Step 2: Convert to fraction form
    2,781.91/3,837.36 = 1,837.71/x
  3. Step 3: Cross multiply
    2,781.91x = 3,837.36 × 1,837.71
  4. Step 4: Simplify right side
    2,781.91x = 7,051,954.85
  5. Step 5: Solve for x
    x = 7,051,954.85/2,781.91
  6. Step 6: Final answer
    x = 2,534.93

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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.