Home / 2,082.75-2,874.20-1,151.25

Finding the Fourth Proportional to 2,082.75, 2,874.20 and 1,151.25

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Solution

The fourth proportional to 2,082.75, 2,874.20 and 1,151.25 is: 1,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.75 : 2,874.20 = 1,151.25 : x
  2. Step 2: Convert to fraction form
    2,082.75/2,874.20 = 1,151.25/x
  3. Step 3: Cross multiply
    2,082.75x = 2,874.20 × 1,151.25
  4. Step 4: Simplify right side
    2,082.75x = 3,308,916.99
  5. Step 5: Solve for x
    x = 3,308,916.99/2,082.75
  6. Step 6: Final answer
    x = 1,588.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.