Home / 2,233.70-3,082.38-1,289.43

Finding the Fourth Proportional to 2,233.70, 3,082.38 and 1,289.43

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Solution

The fourth proportional to 2,233.70, 3,082.38 and 1,289.43 is: 1,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.70 : 3,082.38 = 1,289.43 : x
  2. Step 2: Convert to fraction form
    2,233.70/3,082.38 = 1,289.43/x
  3. Step 3: Cross multiply
    2,233.70x = 3,082.38 × 1,289.43
  4. Step 4: Simplify right side
    2,233.70x = 3,974,513.24
  5. Step 5: Solve for x
    x = 3,974,513.24/2,233.70
  6. Step 6: Final answer
    x = 1,779.34

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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.