Home / 2,340.32-3,229.62-1,292.39

Finding the Fourth Proportional to 2,340.32, 3,229.62 and 1,292.39

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Solution

The fourth proportional to 2,340.32, 3,229.62 and 1,292.39 is: 1,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.32 : 3,229.62 = 1,292.39 : x
  2. Step 2: Convert to fraction form
    2,340.32/3,229.62 = 1,292.39/x
  3. Step 3: Cross multiply
    2,340.32x = 3,229.62 × 1,292.39
  4. Step 4: Simplify right side
    2,340.32x = 4,173,928.59
  5. Step 5: Solve for x
    x = 4,173,928.59/2,340.32
  6. Step 6: Final answer
    x = 1,783.49

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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.