Home / 7,216.20-9,956.72-4,231.88

Finding the Fourth Proportional to 7,216.20, 9,956.72 and 4,231.88

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Solution

The fourth proportional to 7,216.20, 9,956.72 and 4,231.88 is: 5,839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.20 : 9,956.72 = 4,231.88 : x
  2. Step 2: Convert to fraction form
    7,216.20/9,956.72 = 4,231.88/x
  3. Step 3: Cross multiply
    7,216.20x = 9,956.72 × 4,231.88
  4. Step 4: Simplify right side
    7,216.20x = 42,135,644.23
  5. Step 5: Solve for x
    x = 42,135,644.23/7,216.20
  6. Step 6: Final answer
    x = 5,839.03

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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.