Home / 7,217.20-10,829.40-4,099.60

Finding the Fourth Proportional to 7,217.20, 10,829.40 and 4,099.60

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Solution

The fourth proportional to 7,217.20, 10,829.40 and 4,099.60 is: 6,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.20 : 10,829.40 = 4,099.60 : x
  2. Step 2: Convert to fraction form
    7,217.20/10,829.40 = 4,099.60/x
  3. Step 3: Cross multiply
    7,217.20x = 10,829.40 × 4,099.60
  4. Step 4: Simplify right side
    7,217.20x = 44,396,208.24
  5. Step 5: Solve for x
    x = 44,396,208.24/7,217.20
  6. Step 6: Final answer
    x = 6,151.44

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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.