Home / 2,382.04-3,286.96-1,438.36

Finding the Fourth Proportional to 2,382.04, 3,286.96 and 1,438.36

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Solution

The fourth proportional to 2,382.04, 3,286.96 and 1,438.36 is: 1,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.04 : 3,286.96 = 1,438.36 : x
  2. Step 2: Convert to fraction form
    2,382.04/3,286.96 = 1,438.36/x
  3. Step 3: Cross multiply
    2,382.04x = 3,286.96 × 1,438.36
  4. Step 4: Simplify right side
    2,382.04x = 4,727,831.79
  5. Step 5: Solve for x
    x = 4,727,831.79/2,382.04
  6. Step 6: Final answer
    x = 1,984.78

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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.