Home / 3,587.68-5,379.76-2,126.44

Finding the Fourth Proportional to 3,587.68, 5,379.76 and 2,126.44

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Solution

The fourth proportional to 3,587.68, 5,379.76 and 2,126.44 is: 3,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.68 : 5,379.76 = 2,126.44 : x
  2. Step 2: Convert to fraction form
    3,587.68/5,379.76 = 2,126.44/x
  3. Step 3: Cross multiply
    3,587.68x = 5,379.76 × 2,126.44
  4. Step 4: Simplify right side
    3,587.68x = 11,439,736.85
  5. Step 5: Solve for x
    x = 11,439,736.85/3,587.68
  6. Step 6: Final answer
    x = 3,188.62

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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.