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Finding the Fourth Proportional to 6,376.71, 8,803.05 and 3,988.02

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Solution

The fourth proportional to 6,376.71, 8,803.05 and 3,988.02 is: 5,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.71 : 8,803.05 = 3,988.02 : x
  2. Step 2: Convert to fraction form
    6,376.71/8,803.05 = 3,988.02/x
  3. Step 3: Cross multiply
    6,376.71x = 8,803.05 × 3,988.02
  4. Step 4: Simplify right side
    6,376.71x = 35,106,739.46
  5. Step 5: Solve for x
    x = 35,106,739.46/6,376.71
  6. Step 6: Final answer
    x = 5,505.46

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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.