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Finding the Fourth Proportional to 6,316.98, 8,720.22 and 3,799.50

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Solution

The fourth proportional to 6,316.98, 8,720.22 and 3,799.50 is: 5,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,316.98 : 8,720.22 = 3,799.50 : x
  2. Step 2: Convert to fraction form
    6,316.98/8,720.22 = 3,799.50/x
  3. Step 3: Cross multiply
    6,316.98x = 8,720.22 × 3,799.50
  4. Step 4: Simplify right side
    6,316.98x = 33,132,475.89
  5. Step 5: Solve for x
    x = 33,132,475.89/6,316.98
  6. Step 6: Final answer
    x = 5,244.99

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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.