Home / 2,440.48-3,367.92-1,392.64

Finding the Fourth Proportional to 2,440.48, 3,367.92 and 1,392.64

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Solution

The fourth proportional to 2,440.48, 3,367.92 and 1,392.64 is: 1,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.48 : 3,367.92 = 1,392.64 : x
  2. Step 2: Convert to fraction form
    2,440.48/3,367.92 = 1,392.64/x
  3. Step 3: Cross multiply
    2,440.48x = 3,367.92 × 1,392.64
  4. Step 4: Simplify right side
    2,440.48x = 4,690,300.11
  5. Step 5: Solve for x
    x = 4,690,300.11/2,440.48
  6. Step 6: Final answer
    x = 1,921.88

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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.