Home / 5,079.47-7,619.82-1,791.89

Finding the Fourth Proportional to 5,079.47, 7,619.82 and 1,791.89

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Solution

The fourth proportional to 5,079.47, 7,619.82 and 1,791.89 is: 2,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.47 : 7,619.82 = 1,791.89 : x
  2. Step 2: Convert to fraction form
    5,079.47/7,619.82 = 1,791.89/x
  3. Step 3: Cross multiply
    5,079.47x = 7,619.82 × 1,791.89
  4. Step 4: Simplify right side
    5,079.47x = 13,653,832.20
  5. Step 5: Solve for x
    x = 13,653,832.20/5,079.47
  6. Step 6: Final answer
    x = 2,688.04

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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.