Home / 6,721.34-10,082.50-1,790.96

Finding the Fourth Proportional to 6,721.34, 10,082.50 and 1,790.96

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Solution

The fourth proportional to 6,721.34, 10,082.50 and 1,790.96 is: 2,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.34 : 10,082.50 = 1,790.96 : x
  2. Step 2: Convert to fraction form
    6,721.34/10,082.50 = 1,790.96/x
  3. Step 3: Cross multiply
    6,721.34x = 10,082.50 × 1,790.96
  4. Step 4: Simplify right side
    6,721.34x = 18,057,354.20
  5. Step 5: Solve for x
    x = 18,057,354.20/6,721.34
  6. Step 6: Final answer
    x = 2,686.57

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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.