Home / 6,820.96-10,222.80-2,921.08

Finding the Fourth Proportional to 6,820.96, 10,222.80 and 2,921.08

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Solution

The fourth proportional to 6,820.96, 10,222.80 and 2,921.08 is: 4,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.96 : 10,222.80 = 2,921.08 : x
  2. Step 2: Convert to fraction form
    6,820.96/10,222.80 = 2,921.08/x
  3. Step 3: Cross multiply
    6,820.96x = 10,222.80 × 2,921.08
  4. Step 4: Simplify right side
    6,820.96x = 29,861,616.62
  5. Step 5: Solve for x
    x = 29,861,616.62/6,820.96
  6. Step 6: Final answer
    x = 4,377.92

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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.