Home / 3,188.08-4,778.36-1,872.46

Finding the Fourth Proportional to 3,188.08, 4,778.36 and 1,872.46

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Solution

The fourth proportional to 3,188.08, 4,778.36 and 1,872.46 is: 2,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.08 : 4,778.36 = 1,872.46 : x
  2. Step 2: Convert to fraction form
    3,188.08/4,778.36 = 1,872.46/x
  3. Step 3: Cross multiply
    3,188.08x = 4,778.36 × 1,872.46
  4. Step 4: Simplify right side
    3,188.08x = 8,947,266.66
  5. Step 5: Solve for x
    x = 8,947,266.66/3,188.08
  6. Step 6: Final answer
    x = 2,806.48

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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.