Home / 2,186.89-3,280.65-799.90

Finding the Fourth Proportional to 2,186.89, 3,280.65 and 799.90

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Solution

The fourth proportional to 2,186.89, 3,280.65 and 799.90 is: 1,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.89 : 3,280.65 = 799.90 : x
  2. Step 2: Convert to fraction form
    2,186.89/3,280.65 = 799.90/x
  3. Step 3: Cross multiply
    2,186.89x = 3,280.65 × 799.90
  4. Step 4: Simplify right side
    2,186.89x = 2,624,191.94
  5. Step 5: Solve for x
    x = 2,624,191.94/2,186.89
  6. Step 6: Final answer
    x = 1,199.97

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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.