Home / 2,225.45-3,336.32-838.02

Finding the Fourth Proportional to 2,225.45, 3,336.32 and 838.02

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Solution

The fourth proportional to 2,225.45, 3,336.32 and 838.02 is: 1,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.45 : 3,336.32 = 838.02 : x
  2. Step 2: Convert to fraction form
    2,225.45/3,336.32 = 838.02/x
  3. Step 3: Cross multiply
    2,225.45x = 3,336.32 × 838.02
  4. Step 4: Simplify right side
    2,225.45x = 2,795,902.89
  5. Step 5: Solve for x
    x = 2,795,902.89/2,225.45
  6. Step 6: Final answer
    x = 1,256.33

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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.