Home / 4,380.55-6,565.33-2,189.91

Finding the Fourth Proportional to 4,380.55, 6,565.33 and 2,189.91

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Solution

The fourth proportional to 4,380.55, 6,565.33 and 2,189.91 is: 3,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.55 : 6,565.33 = 2,189.91 : x
  2. Step 2: Convert to fraction form
    4,380.55/6,565.33 = 2,189.91/x
  3. Step 3: Cross multiply
    4,380.55x = 6,565.33 × 2,189.91
  4. Step 4: Simplify right side
    4,380.55x = 14,377,481.82
  5. Step 5: Solve for x
    x = 14,377,481.82/4,380.55
  6. Step 6: Final answer
    x = 3,282.12

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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.