Home / 3,267.28-4,509.80-1,991.62

Finding the Fourth Proportional to 3,267.28, 4,509.80 and 1,991.62

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Solution

The fourth proportional to 3,267.28, 4,509.80 and 1,991.62 is: 2,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,267.28 : 4,509.80 = 1,991.62 : x
  2. Step 2: Convert to fraction form
    3,267.28/4,509.80 = 1,991.62/x
  3. Step 3: Cross multiply
    3,267.28x = 4,509.80 × 1,991.62
  4. Step 4: Simplify right side
    3,267.28x = 8,981,807.88
  5. Step 5: Solve for x
    x = 8,981,807.88/3,267.28
  6. Step 6: Final answer
    x = 2,749.02

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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.