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Finding the Fourth Proportional to 6,899.94, 10,342.71 and 3,199.11

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Solution

The fourth proportional to 6,899.94, 10,342.71 and 3,199.11 is: 4,795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.94 : 10,342.71 = 3,199.11 : x
  2. Step 2: Convert to fraction form
    6,899.94/10,342.71 = 3,199.11/x
  3. Step 3: Cross multiply
    6,899.94x = 10,342.71 × 3,199.11
  4. Step 4: Simplify right side
    6,899.94x = 33,087,466.99
  5. Step 5: Solve for x
    x = 33,087,466.99/6,899.94
  6. Step 6: Final answer
    x = 4,795.33

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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.