Home / 4,959.20-7,427.28-3,791.36

Finding the Fourth Proportional to 4,959.20, 7,427.28 and 3,791.36

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Solution

The fourth proportional to 4,959.20, 7,427.28 and 3,791.36 is: 5,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.20 : 7,427.28 = 3,791.36 : x
  2. Step 2: Convert to fraction form
    4,959.20/7,427.28 = 3,791.36/x
  3. Step 3: Cross multiply
    4,959.20x = 7,427.28 × 3,791.36
  4. Step 4: Simplify right side
    4,959.20x = 28,159,492.30
  5. Step 5: Solve for x
    x = 28,159,492.30/4,959.20
  6. Step 6: Final answer
    x = 5,678.23

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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.