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Finding the Fourth Proportional to 6,321.88, 8,723.14 and 3,803.40

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Solution

The fourth proportional to 6,321.88, 8,723.14 and 3,803.40 is: 5,248.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.88 : 8,723.14 = 3,803.40 : x
  2. Step 2: Convert to fraction form
    6,321.88/8,723.14 = 3,803.40/x
  3. Step 3: Cross multiply
    6,321.88x = 8,723.14 × 3,803.40
  4. Step 4: Simplify right side
    6,321.88x = 33,177,590.68
  5. Step 5: Solve for x
    x = 33,177,590.68/6,321.88
  6. Step 6: Final answer
    x = 5,248.06

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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.