Home / 2,226.85-3,340.28-928.32

Finding the Fourth Proportional to 2,226.85, 3,340.28 and 928.32

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Solution

The fourth proportional to 2,226.85, 3,340.28 and 928.32 is: 1,392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.85 : 3,340.28 = 928.32 : x
  2. Step 2: Convert to fraction form
    2,226.85/3,340.28 = 928.32/x
  3. Step 3: Cross multiply
    2,226.85x = 3,340.28 × 928.32
  4. Step 4: Simplify right side
    2,226.85x = 3,100,827.39
  5. Step 5: Solve for x
    x = 3,100,827.39/2,226.85
  6. Step 6: Final answer
    x = 1,392.48

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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.