Home / 2,225.19-3,338.56-838.93

Finding the Fourth Proportional to 2,225.19, 3,338.56 and 838.93

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Solution

The fourth proportional to 2,225.19, 3,338.56 and 838.93 is: 1,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.19 : 3,338.56 = 838.93 : x
  2. Step 2: Convert to fraction form
    2,225.19/3,338.56 = 838.93/x
  3. Step 3: Cross multiply
    2,225.19x = 3,338.56 × 838.93
  4. Step 4: Simplify right side
    2,225.19x = 2,800,813.59
  5. Step 5: Solve for x
    x = 2,800,813.59/2,225.19
  6. Step 6: Final answer
    x = 1,258.68

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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.