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Finding the Fourth Proportional to 2,225.86, 3,338.13 and 838.19

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Solution

The fourth proportional to 2,225.86, 3,338.13 and 838.19 is: 1,257.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.86 : 3,338.13 = 838.19 : x
  2. Step 2: Convert to fraction form
    2,225.86/3,338.13 = 838.19/x
  3. Step 3: Cross multiply
    2,225.86x = 3,338.13 × 838.19
  4. Step 4: Simplify right side
    2,225.86x = 2,797,987.18
  5. Step 5: Solve for x
    x = 2,797,987.18/2,225.86
  6. Step 6: Final answer
    x = 1,257.04

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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.