Home / 2,234.08-3,082.77-1,289.86

Finding the Fourth Proportional to 2,234.08, 3,082.77 and 1,289.86

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Solution

The fourth proportional to 2,234.08, 3,082.77 and 1,289.86 is: 1,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.08 : 3,082.77 = 1,289.86 : x
  2. Step 2: Convert to fraction form
    2,234.08/3,082.77 = 1,289.86/x
  3. Step 3: Cross multiply
    2,234.08x = 3,082.77 × 1,289.86
  4. Step 4: Simplify right side
    2,234.08x = 3,976,319.85
  5. Step 5: Solve for x
    x = 3,976,319.85/2,234.08
  6. Step 6: Final answer
    x = 1,779.85

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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.