Home / 5,082.38-7,621.70-1,749.68

Finding the Fourth Proportional to 5,082.38, 7,621.70 and 1,749.68

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Solution

The fourth proportional to 5,082.38, 7,621.70 and 1,749.68 is: 2,623.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,082.38 : 7,621.70 = 1,749.68 : x
  2. Step 2: Convert to fraction form
    5,082.38/7,621.70 = 1,749.68/x
  3. Step 3: Cross multiply
    5,082.38x = 7,621.70 × 1,749.68
  4. Step 4: Simplify right side
    5,082.38x = 13,335,555.65
  5. Step 5: Solve for x
    x = 13,335,555.65/5,082.38
  6. Step 6: Final answer
    x = 2,623.88

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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.