Home / 6,721.08-10,082.72-2,103

Finding the Fourth Proportional to 6,721.08, 10,082.72 and 2,103

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Solution

The fourth proportional to 6,721.08, 10,082.72 and 2,103 is: 3,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.08 : 10,082.72 = 2,103 : x
  2. Step 2: Convert to fraction form
    6,721.08/10,082.72 = 2,103/x
  3. Step 3: Cross multiply
    6,721.08x = 10,082.72 × 2,103
  4. Step 4: Simplify right side
    6,721.08x = 21,203,960.16
  5. Step 5: Solve for x
    x = 21,203,960.16/6,721.08
  6. Step 6: Final answer
    x = 3,154.84

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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.