Home / 3,122.20-4,658.99-3,100.60

Finding the Fourth Proportional to 3,122.20, 4,658.99 and 3,100.60

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Solution

The fourth proportional to 3,122.20, 4,658.99 and 3,100.60 is: 4,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.20 : 4,658.99 = 3,100.60 : x
  2. Step 2: Convert to fraction form
    3,122.20/4,658.99 = 3,100.60/x
  3. Step 3: Cross multiply
    3,122.20x = 4,658.99 × 3,100.60
  4. Step 4: Simplify right side
    3,122.20x = 14,445,664.39
  5. Step 5: Solve for x
    x = 14,445,664.39/3,122.20
  6. Step 6: Final answer
    x = 4,626.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.