Home / 3,311.32-4,571.63-2,193.21

Finding the Fourth Proportional to 3,311.32, 4,571.63 and 2,193.21

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Solution

The fourth proportional to 3,311.32, 4,571.63 and 2,193.21 is: 3,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.32 : 4,571.63 = 2,193.21 : x
  2. Step 2: Convert to fraction form
    3,311.32/4,571.63 = 2,193.21/x
  3. Step 3: Cross multiply
    3,311.32x = 4,571.63 × 2,193.21
  4. Step 4: Simplify right side
    3,311.32x = 10,026,550.81
  5. Step 5: Solve for x
    x = 10,026,550.81/3,311.32
  6. Step 6: Final answer
    x = 3,027.96

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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.