Home / 2,228.38-3,342.54-1,309.77

Finding the Fourth Proportional to 2,228.38, 3,342.54 and 1,309.77

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Solution

The fourth proportional to 2,228.38, 3,342.54 and 1,309.77 is: 1,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.38 : 3,342.54 = 1,309.77 : x
  2. Step 2: Convert to fraction form
    2,228.38/3,342.54 = 1,309.77/x
  3. Step 3: Cross multiply
    2,228.38x = 3,342.54 × 1,309.77
  4. Step 4: Simplify right side
    2,228.38x = 4,377,958.62
  5. Step 5: Solve for x
    x = 4,377,958.62/2,228.38
  6. Step 6: Final answer
    x = 1,964.64

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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.