Home / 3,188.82-4,400.87-1,930.19

Finding the Fourth Proportional to 3,188.82, 4,400.87 and 1,930.19

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Solution

The fourth proportional to 3,188.82, 4,400.87 and 1,930.19 is: 2,663.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.82 : 4,400.87 = 1,930.19 : x
  2. Step 2: Convert to fraction form
    3,188.82/4,400.87 = 1,930.19/x
  3. Step 3: Cross multiply
    3,188.82x = 4,400.87 × 1,930.19
  4. Step 4: Simplify right side
    3,188.82x = 8,494,483.61
  5. Step 5: Solve for x
    x = 8,494,483.61/3,188.82
  6. Step 6: Final answer
    x = 2,663.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.