Home / 2,008.39-3,012.86-621.84

Finding the Fourth Proportional to 2,008.39, 3,012.86 and 621.84

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Solution

The fourth proportional to 2,008.39, 3,012.86 and 621.84 is: 932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.39 : 3,012.86 = 621.84 : x
  2. Step 2: Convert to fraction form
    2,008.39/3,012.86 = 621.84/x
  3. Step 3: Cross multiply
    2,008.39x = 3,012.86 × 621.84
  4. Step 4: Simplify right side
    2,008.39x = 1,873,516.86
  5. Step 5: Solve for x
    x = 1,873,516.86/2,008.39
  6. Step 6: Final answer
    x = 932.85

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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.