Home / 2,487.09-3,729.89-1,791.66

Finding the Fourth Proportional to 2,487.09, 3,729.89 and 1,791.66

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Solution

The fourth proportional to 2,487.09, 3,729.89 and 1,791.66 is: 2,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.09 : 3,729.89 = 1,791.66 : x
  2. Step 2: Convert to fraction form
    2,487.09/3,729.89 = 1,791.66/x
  3. Step 3: Cross multiply
    2,487.09x = 3,729.89 × 1,791.66
  4. Step 4: Simplify right side
    2,487.09x = 6,682,699.20
  5. Step 5: Solve for x
    x = 6,682,699.20/2,487.09
  6. Step 6: Final answer
    x = 2,686.96

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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.