Home / 2,647.25-3,971.45-1,003.81

Finding the Fourth Proportional to 2,647.25, 3,971.45 and 1,003.81

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Solution

The fourth proportional to 2,647.25, 3,971.45 and 1,003.81 is: 1,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.25 : 3,971.45 = 1,003.81 : x
  2. Step 2: Convert to fraction form
    2,647.25/3,971.45 = 1,003.81/x
  3. Step 3: Cross multiply
    2,647.25x = 3,971.45 × 1,003.81
  4. Step 4: Simplify right side
    2,647.25x = 3,986,566.28
  5. Step 5: Solve for x
    x = 3,986,566.28/2,647.25
  6. Step 6: Final answer
    x = 1,505.93

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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.