Home / 2,810.38-3,876.32-2,146.08

Finding the Fourth Proportional to 2,810.38, 3,876.32 and 2,146.08

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Solution

The fourth proportional to 2,810.38, 3,876.32 and 2,146.08 is: 2,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.38 : 3,876.32 = 2,146.08 : x
  2. Step 2: Convert to fraction form
    2,810.38/3,876.32 = 2,146.08/x
  3. Step 3: Cross multiply
    2,810.38x = 3,876.32 × 2,146.08
  4. Step 4: Simplify right side
    2,810.38x = 8,318,892.83
  5. Step 5: Solve for x
    x = 8,318,892.83/2,810.38
  6. Step 6: Final answer
    x = 2,960.06

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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.