Home / 2,678.12-4,035.46-2,201.84

Finding the Fourth Proportional to 2,678.12, 4,035.46 and 2,201.84

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Solution

The fourth proportional to 2,678.12, 4,035.46 and 2,201.84 is: 3,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.12 : 4,035.46 = 2,201.84 : x
  2. Step 2: Convert to fraction form
    2,678.12/4,035.46 = 2,201.84/x
  3. Step 3: Cross multiply
    2,678.12x = 4,035.46 × 2,201.84
  4. Step 4: Simplify right side
    2,678.12x = 8,885,406.06
  5. Step 5: Solve for x
    x = 8,885,406.06/2,678.12
  6. Step 6: Final answer
    x = 3,317.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.