Home / 4,189.62-5,781.90-2,511.30

Finding the Fourth Proportional to 4,189.62, 5,781.90 and 2,511.30

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Solution

The fourth proportional to 4,189.62, 5,781.90 and 2,511.30 is: 3,465.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.62 : 5,781.90 = 2,511.30 : x
  2. Step 2: Convert to fraction form
    4,189.62/5,781.90 = 2,511.30/x
  3. Step 3: Cross multiply
    4,189.62x = 5,781.90 × 2,511.30
  4. Step 4: Simplify right side
    4,189.62x = 14,520,085.47
  5. Step 5: Solve for x
    x = 14,520,085.47/4,189.62
  6. Step 6: Final answer
    x = 3,465.73

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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.