Home / 2,791.96-4,186.05-1,148.02

Finding the Fourth Proportional to 2,791.96, 4,186.05 and 1,148.02

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Solution

The fourth proportional to 2,791.96, 4,186.05 and 1,148.02 is: 1,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.96 : 4,186.05 = 1,148.02 : x
  2. Step 2: Convert to fraction form
    2,791.96/4,186.05 = 1,148.02/x
  3. Step 3: Cross multiply
    2,791.96x = 4,186.05 × 1,148.02
  4. Step 4: Simplify right side
    2,791.96x = 4,805,669.12
  5. Step 5: Solve for x
    x = 4,805,669.12/2,791.96
  6. Step 6: Final answer
    x = 1,721.25

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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.