Home / 3,100.60-4,650.90-2,225.80

Finding the Fourth Proportional to 3,100.60, 4,650.90 and 2,225.80

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Solution

The fourth proportional to 3,100.60, 4,650.90 and 2,225.80 is: 3,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.60 : 4,650.90 = 2,225.80 : x
  2. Step 2: Convert to fraction form
    3,100.60/4,650.90 = 2,225.80/x
  3. Step 3: Cross multiply
    3,100.60x = 4,650.90 × 2,225.80
  4. Step 4: Simplify right side
    3,100.60x = 10,351,973.22
  5. Step 5: Solve for x
    x = 10,351,973.22/3,100.60
  6. Step 6: Final answer
    x = 3,338.70

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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.