Home / 2,082.92-2,874.36-1,151.40

Finding the Fourth Proportional to 2,082.92, 2,874.36 and 1,151.40

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Solution

The fourth proportional to 2,082.92, 2,874.36 and 1,151.40 is: 1,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.92 : 2,874.36 = 1,151.40 : x
  2. Step 2: Convert to fraction form
    2,082.92/2,874.36 = 1,151.40/x
  3. Step 3: Cross multiply
    2,082.92x = 2,874.36 × 1,151.40
  4. Step 4: Simplify right side
    2,082.92x = 3,309,538.10
  5. Step 5: Solve for x
    x = 3,309,538.10/2,082.92
  6. Step 6: Final answer
    x = 1,588.89

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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.