Home / 2,440.70-3,367.78-1,392.62

Finding the Fourth Proportional to 2,440.70, 3,367.78 and 1,392.62

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Solution

The fourth proportional to 2,440.70, 3,367.78 and 1,392.62 is: 1,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.70 : 3,367.78 = 1,392.62 : x
  2. Step 2: Convert to fraction form
    2,440.70/3,367.78 = 1,392.62/x
  3. Step 3: Cross multiply
    2,440.70x = 3,367.78 × 1,392.62
  4. Step 4: Simplify right side
    2,440.70x = 4,690,017.46
  5. Step 5: Solve for x
    x = 4,690,017.46/2,440.70
  6. Step 6: Final answer
    x = 1,921.59

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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.