Home / 7,399.40-11,099.34-2,720.79

Finding the Fourth Proportional to 7,399.40, 11,099.34 and 2,720.79

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Solution

The fourth proportional to 7,399.40, 11,099.34 and 2,720.79 is: 4,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.40 : 11,099.34 = 2,720.79 : x
  2. Step 2: Convert to fraction form
    7,399.40/11,099.34 = 2,720.79/x
  3. Step 3: Cross multiply
    7,399.40x = 11,099.34 × 2,720.79
  4. Step 4: Simplify right side
    7,399.40x = 30,198,973.28
  5. Step 5: Solve for x
    x = 30,198,973.28/7,399.40
  6. Step 6: Final answer
    x = 4,081.28

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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.