Home / 2,188.30-3,277.23-1,261.92

Finding the Fourth Proportional to 2,188.30, 3,277.23 and 1,261.92

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Solution

The fourth proportional to 2,188.30, 3,277.23 and 1,261.92 is: 1,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.30 : 3,277.23 = 1,261.92 : x
  2. Step 2: Convert to fraction form
    2,188.30/3,277.23 = 1,261.92/x
  3. Step 3: Cross multiply
    2,188.30x = 3,277.23 × 1,261.92
  4. Step 4: Simplify right side
    2,188.30x = 4,135,602.08
  5. Step 5: Solve for x
    x = 4,135,602.08/2,188.30
  6. Step 6: Final answer
    x = 1,889.87

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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.