Home / 1,845.08-2,546.12-1,005.78

Finding the Fourth Proportional to 1,845.08, 2,546.12 and 1,005.78

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Solution

The fourth proportional to 1,845.08, 2,546.12 and 1,005.78 is: 1,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.08 : 2,546.12 = 1,005.78 : x
  2. Step 2: Convert to fraction form
    1,845.08/2,546.12 = 1,005.78/x
  3. Step 3: Cross multiply
    1,845.08x = 2,546.12 × 1,005.78
  4. Step 4: Simplify right side
    1,845.08x = 2,560,836.57
  5. Step 5: Solve for x
    x = 2,560,836.57/1,845.08
  6. Step 6: Final answer
    x = 1,387.93

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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.