Home / 2,179.86-3,269.45-1,812.03

Finding the Fourth Proportional to 2,179.86, 3,269.45 and 1,812.03

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Solution

The fourth proportional to 2,179.86, 3,269.45 and 1,812.03 is: 2,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.86 : 3,269.45 = 1,812.03 : x
  2. Step 2: Convert to fraction form
    2,179.86/3,269.45 = 1,812.03/x
  3. Step 3: Cross multiply
    2,179.86x = 3,269.45 × 1,812.03
  4. Step 4: Simplify right side
    2,179.86x = 5,924,332.42
  5. Step 5: Solve for x
    x = 5,924,332.42/2,179.86
  6. Step 6: Final answer
    x = 2,717.76

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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.