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Finding the Fourth Proportional to 2,082.85, 3,124.26 and 696.18

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Solution

The fourth proportional to 2,082.85, 3,124.26 and 696.18 is: 1,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.85 : 3,124.26 = 696.18 : x
  2. Step 2: Convert to fraction form
    2,082.85/3,124.26 = 696.18/x
  3. Step 3: Cross multiply
    2,082.85x = 3,124.26 × 696.18
  4. Step 4: Simplify right side
    2,082.85x = 2,175,059.04
  5. Step 5: Solve for x
    x = 2,175,059.04/2,082.85
  6. Step 6: Final answer
    x = 1,044.27

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1.5x scale

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.