Home / 4,742.24-7,113.76-1,279.52

Finding the Fourth Proportional to 4,742.24, 7,113.76 and 1,279.52

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Solution

The fourth proportional to 4,742.24, 7,113.76 and 1,279.52 is: 1,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.24 : 7,113.76 = 1,279.52 : x
  2. Step 2: Convert to fraction form
    4,742.24/7,113.76 = 1,279.52/x
  3. Step 3: Cross multiply
    4,742.24x = 7,113.76 × 1,279.52
  4. Step 4: Simplify right side
    4,742.24x = 9,102,198.20
  5. Step 5: Solve for x
    x = 9,102,198.20/4,742.24
  6. Step 6: Final answer
    x = 1,919.39

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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.