Home / 1,325.27-1,991-1,250.46

Finding the Fourth Proportional to 1,325.27, 1,991 and 1,250.46

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Solution

The fourth proportional to 1,325.27, 1,991 and 1,250.46 is: 1,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.27 : 1,991 = 1,250.46 : x
  2. Step 2: Convert to fraction form
    1,325.27/1,991 = 1,250.46/x
  3. Step 3: Cross multiply
    1,325.27x = 1,991 × 1,250.46
  4. Step 4: Simplify right side
    1,325.27x = 2,489,665.86
  5. Step 5: Solve for x
    x = 2,489,665.86/1,325.27
  6. Step 6: Final answer
    x = 1,878.61

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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.