Home / 4,738.20-7,113.15-2,983.20

Finding the Fourth Proportional to 4,738.20, 7,113.15 and 2,983.20

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Solution

The fourth proportional to 4,738.20, 7,113.15 and 2,983.20 is: 4,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.20 : 7,113.15 = 2,983.20 : x
  2. Step 2: Convert to fraction form
    4,738.20/7,113.15 = 2,983.20/x
  3. Step 3: Cross multiply
    4,738.20x = 7,113.15 × 2,983.20
  4. Step 4: Simplify right side
    4,738.20x = 21,219,949.08
  5. Step 5: Solve for x
    x = 21,219,949.08/4,738.20
  6. Step 6: Final answer
    x = 4,478.48

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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.