Home / 4,738.10-7,111.20-2,109.65

Finding the Fourth Proportional to 4,738.10, 7,111.20 and 2,109.65

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Solution

The fourth proportional to 4,738.10, 7,111.20 and 2,109.65 is: 3,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.10 : 7,111.20 = 2,109.65 : x
  2. Step 2: Convert to fraction form
    4,738.10/7,111.20 = 2,109.65/x
  3. Step 3: Cross multiply
    4,738.10x = 7,111.20 × 2,109.65
  4. Step 4: Simplify right side
    4,738.10x = 15,002,143.08
  5. Step 5: Solve for x
    x = 15,002,143.08/4,738.10
  6. Step 6: Final answer
    x = 3,166.28

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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.