Home / 2,187.42-3,280.26-800.44

Finding the Fourth Proportional to 2,187.42, 3,280.26 and 800.44

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Solution

The fourth proportional to 2,187.42, 3,280.26 and 800.44 is: 1,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.42 : 3,280.26 = 800.44 : x
  2. Step 2: Convert to fraction form
    2,187.42/3,280.26 = 800.44/x
  3. Step 3: Cross multiply
    2,187.42x = 3,280.26 × 800.44
  4. Step 4: Simplify right side
    2,187.42x = 2,625,651.31
  5. Step 5: Solve for x
    x = 2,625,651.31/2,187.42
  6. Step 6: Final answer
    x = 1,200.34

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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.