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Finding the Fourth Proportional to 6,381.59, 8,803.01 and 3,993.17

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Solution

The fourth proportional to 6,381.59, 8,803.01 and 3,993.17 is: 5,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.59 : 8,803.01 = 3,993.17 : x
  2. Step 2: Convert to fraction form
    6,381.59/8,803.01 = 3,993.17/x
  3. Step 3: Cross multiply
    6,381.59x = 8,803.01 × 3,993.17
  4. Step 4: Simplify right side
    6,381.59x = 35,151,881.41
  5. Step 5: Solve for x
    x = 35,151,881.41/6,381.59
  6. Step 6: Final answer
    x = 5,508.33

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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.