Home / 4,099.20-6,149.40-2,151.55

Finding the Fourth Proportional to 4,099.20, 6,149.40 and 2,151.55

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Solution

The fourth proportional to 4,099.20, 6,149.40 and 2,151.55 is: 3,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.20 : 6,149.40 = 2,151.55 : x
  2. Step 2: Convert to fraction form
    4,099.20/6,149.40 = 2,151.55/x
  3. Step 3: Cross multiply
    4,099.20x = 6,149.40 × 2,151.55
  4. Step 4: Simplify right side
    4,099.20x = 13,230,741.57
  5. Step 5: Solve for x
    x = 13,230,741.57/4,099.20
  6. Step 6: Final answer
    x = 3,227.64

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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.