Home / 7,099.10-9,796.61-3,912.68

Finding the Fourth Proportional to 7,099.10, 9,796.61 and 3,912.68

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Solution

The fourth proportional to 7,099.10, 9,796.61 and 3,912.68 is: 5,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.10 : 9,796.61 = 3,912.68 : x
  2. Step 2: Convert to fraction form
    7,099.10/9,796.61 = 3,912.68/x
  3. Step 3: Cross multiply
    7,099.10x = 9,796.61 × 3,912.68
  4. Step 4: Simplify right side
    7,099.10x = 38,331,000.01
  5. Step 5: Solve for x
    x = 38,331,000.01/7,099.10
  6. Step 6: Final answer
    x = 5,399.42

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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.