Home / 3,388.32-4,675.32-1,991.34

Finding the Fourth Proportional to 3,388.32, 4,675.32 and 1,991.34

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Solution

The fourth proportional to 3,388.32, 4,675.32 and 1,991.34 is: 2,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.32 : 4,675.32 = 1,991.34 : x
  2. Step 2: Convert to fraction form
    3,388.32/4,675.32 = 1,991.34/x
  3. Step 3: Cross multiply
    3,388.32x = 4,675.32 × 1,991.34
  4. Step 4: Simplify right side
    3,388.32x = 9,310,151.73
  5. Step 5: Solve for x
    x = 9,310,151.73/3,388.32
  6. Step 6: Final answer
    x = 2,747.72

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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.