Home / 2,781.63-3,836.51-1,895.90

Finding the Fourth Proportional to 2,781.63, 3,836.51 and 1,895.90

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Solution

The fourth proportional to 2,781.63, 3,836.51 and 1,895.90 is: 2,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.63 : 3,836.51 = 1,895.90 : x
  2. Step 2: Convert to fraction form
    2,781.63/3,836.51 = 1,895.90/x
  3. Step 3: Cross multiply
    2,781.63x = 3,836.51 × 1,895.90
  4. Step 4: Simplify right side
    2,781.63x = 7,273,610.65
  5. Step 5: Solve for x
    x = 7,273,610.65/2,781.63
  6. Step 6: Final answer
    x = 2,614.87

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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.