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Finding the Fourth Proportional to 6,639.23, 9,964.99 and 3,354.63

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Solution

The fourth proportional to 6,639.23, 9,964.99 and 3,354.63 is: 5,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.23 : 9,964.99 = 3,354.63 : x
  2. Step 2: Convert to fraction form
    6,639.23/9,964.99 = 3,354.63/x
  3. Step 3: Cross multiply
    6,639.23x = 9,964.99 × 3,354.63
  4. Step 4: Simplify right side
    6,639.23x = 33,428,804.58
  5. Step 5: Solve for x
    x = 33,428,804.58/6,639.23
  6. Step 6: Final answer
    x = 5,035.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.