Home / 3,875.20-5,814.14-2,122.08

Finding the Fourth Proportional to 3,875.20, 5,814.14 and 2,122.08

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Solution

The fourth proportional to 3,875.20, 5,814.14 and 2,122.08 is: 3,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.20 : 5,814.14 = 2,122.08 : x
  2. Step 2: Convert to fraction form
    3,875.20/5,814.14 = 2,122.08/x
  3. Step 3: Cross multiply
    3,875.20x = 5,814.14 × 2,122.08
  4. Step 4: Simplify right side
    3,875.20x = 12,338,070.21
  5. Step 5: Solve for x
    x = 12,338,070.21/3,875.20
  6. Step 6: Final answer
    x = 3,183.85

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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.