Home / 2,541.78-3,812.00-2,131.11

Finding the Fourth Proportional to 2,541.78, 3,812.00 and 2,131.11

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Solution

The fourth proportional to 2,541.78, 3,812.00 and 2,131.11 is: 3,196.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,541.78 : 3,812.00 = 2,131.11 : x
  2. Step 2: Convert to fraction form
    2,541.78/3,812.00 = 2,131.11/x
  3. Step 3: Cross multiply
    2,541.78x = 3,812.00 × 2,131.11
  4. Step 4: Simplify right side
    2,541.78x = 8,123,780.66
  5. Step 5: Solve for x
    x = 8,123,780.66/2,541.78
  6. Step 6: Final answer
    x = 3,196.10

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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.