Home / 6,921.89-10,367.22-3,216.32

Finding the Fourth Proportional to 6,921.89, 10,367.22 and 3,216.32

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Solution

The fourth proportional to 6,921.89, 10,367.22 and 3,216.32 is: 4,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.89 : 10,367.22 = 3,216.32 : x
  2. Step 2: Convert to fraction form
    6,921.89/10,367.22 = 3,216.32/x
  3. Step 3: Cross multiply
    6,921.89x = 10,367.22 × 3,216.32
  4. Step 4: Simplify right side
    6,921.89x = 33,344,245.19
  5. Step 5: Solve for x
    x = 33,344,245.19/6,921.89
  6. Step 6: Final answer
    x = 4,817.22

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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.