Home / 2,622.12-3,914.85-2,255.40

Finding the Fourth Proportional to 2,622.12, 3,914.85 and 2,255.40

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Solution

The fourth proportional to 2,622.12, 3,914.85 and 2,255.40 is: 3,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.12 : 3,914.85 = 2,255.40 : x
  2. Step 2: Convert to fraction form
    2,622.12/3,914.85 = 2,255.40/x
  3. Step 3: Cross multiply
    2,622.12x = 3,914.85 × 2,255.40
  4. Step 4: Simplify right side
    2,622.12x = 8,829,552.69
  5. Step 5: Solve for x
    x = 8,829,552.69/2,622.12
  6. Step 6: Final answer
    x = 3,367.33

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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.