Home / 2,074.13-3,114.44-1,981.79

Finding the Fourth Proportional to 2,074.13, 3,114.44 and 1,981.79

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Solution

The fourth proportional to 2,074.13, 3,114.44 and 1,981.79 is: 2,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.13 : 3,114.44 = 1,981.79 : x
  2. Step 2: Convert to fraction form
    2,074.13/3,114.44 = 1,981.79/x
  3. Step 3: Cross multiply
    2,074.13x = 3,114.44 × 1,981.79
  4. Step 4: Simplify right side
    2,074.13x = 6,172,156.14
  5. Step 5: Solve for x
    x = 6,172,156.14/2,074.13
  6. Step 6: Final answer
    x = 2,975.78

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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.