Home / 5,311.44-7,966.89-2,190.51

Finding the Fourth Proportional to 5,311.44, 7,966.89 and 2,190.51

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Solution

The fourth proportional to 5,311.44, 7,966.89 and 2,190.51 is: 3,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.44 : 7,966.89 = 2,190.51 : x
  2. Step 2: Convert to fraction form
    5,311.44/7,966.89 = 2,190.51/x
  3. Step 3: Cross multiply
    5,311.44x = 7,966.89 × 2,190.51
  4. Step 4: Simplify right side
    5,311.44x = 17,451,552.21
  5. Step 5: Solve for x
    x = 17,451,552.21/5,311.44
  6. Step 6: Final answer
    x = 3,285.65

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1.5x scale

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.