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Finding the Fourth Proportional to 2,226.39, 3,339.54 and 910.85

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Solution

The fourth proportional to 2,226.39, 3,339.54 and 910.85 is: 1,366.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.39 : 3,339.54 = 910.85 : x
  2. Step 2: Convert to fraction form
    2,226.39/3,339.54 = 910.85/x
  3. Step 3: Cross multiply
    2,226.39x = 3,339.54 × 910.85
  4. Step 4: Simplify right side
    2,226.39x = 3,041,803.31
  5. Step 5: Solve for x
    x = 3,041,803.31/2,226.39
  6. Step 6: Final answer
    x = 1,366.25

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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.