Home / 1,845.64-2,545.62-1,375.12

Finding the Fourth Proportional to 1,845.64, 2,545.62 and 1,375.12

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Solution

The fourth proportional to 1,845.64, 2,545.62 and 1,375.12 is: 1,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.64 : 2,545.62 = 1,375.12 : x
  2. Step 2: Convert to fraction form
    1,845.64/2,545.62 = 1,375.12/x
  3. Step 3: Cross multiply
    1,845.64x = 2,545.62 × 1,375.12
  4. Step 4: Simplify right side
    1,845.64x = 3,500,532.97
  5. Step 5: Solve for x
    x = 3,500,532.97/1,845.64
  6. Step 6: Final answer
    x = 1,896.65

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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.