Home / 6,921.83-9,552.12-3,778.02

Finding the Fourth Proportional to 6,921.83, 9,552.12 and 3,778.02

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Solution

The fourth proportional to 6,921.83, 9,552.12 and 3,778.02 is: 5,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.83 : 9,552.12 = 3,778.02 : x
  2. Step 2: Convert to fraction form
    6,921.83/9,552.12 = 3,778.02/x
  3. Step 3: Cross multiply
    6,921.83x = 9,552.12 × 3,778.02
  4. Step 4: Simplify right side
    6,921.83x = 36,088,043.20
  5. Step 5: Solve for x
    x = 36,088,043.20/6,921.83
  6. Step 6: Final answer
    x = 5,213.66

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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.