Home / 4,144.32-6,215.80-1,221.95

Finding the Fourth Proportional to 4,144.32, 6,215.80 and 1,221.95

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Solution

The fourth proportional to 4,144.32, 6,215.80 and 1,221.95 is: 1,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,144.32 : 6,215.80 = 1,221.95 : x
  2. Step 2: Convert to fraction form
    4,144.32/6,215.80 = 1,221.95/x
  3. Step 3: Cross multiply
    4,144.32x = 6,215.80 × 1,221.95
  4. Step 4: Simplify right side
    4,144.32x = 7,595,396.81
  5. Step 5: Solve for x
    x = 7,595,396.81/4,144.32
  6. Step 6: Final answer
    x = 1,832.72

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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.