Home / 2,182.18-3,270.30-1,205.86

Finding the Fourth Proportional to 2,182.18, 3,270.30 and 1,205.86

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Solution

The fourth proportional to 2,182.18, 3,270.30 and 1,205.86 is: 1,807.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.18 : 3,270.30 = 1,205.86 : x
  2. Step 2: Convert to fraction form
    2,182.18/3,270.30 = 1,205.86/x
  3. Step 3: Cross multiply
    2,182.18x = 3,270.30 × 1,205.86
  4. Step 4: Simplify right side
    2,182.18x = 3,943,523.96
  5. Step 5: Solve for x
    x = 3,943,523.96/2,182.18
  6. Step 6: Final answer
    x = 1,807.15

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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.