Home / 2,439.38-3,366.35-1,320.33

Finding the Fourth Proportional to 2,439.38, 3,366.35 and 1,320.33

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Solution

The fourth proportional to 2,439.38, 3,366.35 and 1,320.33 is: 1,822.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.38 : 3,366.35 = 1,320.33 : x
  2. Step 2: Convert to fraction form
    2,439.38/3,366.35 = 1,320.33/x
  3. Step 3: Cross multiply
    2,439.38x = 3,366.35 × 1,320.33
  4. Step 4: Simplify right side
    2,439.38x = 4,444,684.93
  5. Step 5: Solve for x
    x = 4,444,684.93/2,439.38
  6. Step 6: Final answer
    x = 1,822.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.