Home / 2,647.38-3,971.30-1,003.93

Finding the Fourth Proportional to 2,647.38, 3,971.30 and 1,003.93

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Solution

The fourth proportional to 2,647.38, 3,971.30 and 1,003.93 is: 1,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.38 : 3,971.30 = 1,003.93 : x
  2. Step 2: Convert to fraction form
    2,647.38/3,971.30 = 1,003.93/x
  3. Step 3: Cross multiply
    2,647.38x = 3,971.30 × 1,003.93
  4. Step 4: Simplify right side
    2,647.38x = 3,986,892.26
  5. Step 5: Solve for x
    x = 3,986,892.26/2,647.38
  6. Step 6: Final answer
    x = 1,505.97

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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.