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Finding the Fourth Proportional to 7,099.69, 10,649.09 and 2,168.88

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Solution

The fourth proportional to 7,099.69, 10,649.09 and 2,168.88 is: 3,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.69 : 10,649.09 = 2,168.88 : x
  2. Step 2: Convert to fraction form
    7,099.69/10,649.09 = 2,168.88/x
  3. Step 3: Cross multiply
    7,099.69x = 10,649.09 × 2,168.88
  4. Step 4: Simplify right side
    7,099.69x = 23,096,603.74
  5. Step 5: Solve for x
    x = 23,096,603.74/7,099.69
  6. Step 6: Final answer
    x = 3,253.19

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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.