Home / 2,440.31-3,367.60-1,378.07

Finding the Fourth Proportional to 2,440.31, 3,367.60 and 1,378.07

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Solution

The fourth proportional to 2,440.31, 3,367.60 and 1,378.07 is: 1,901.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.31 : 3,367.60 = 1,378.07 : x
  2. Step 2: Convert to fraction form
    2,440.31/3,367.60 = 1,378.07/x
  3. Step 3: Cross multiply
    2,440.31x = 3,367.60 × 1,378.07
  4. Step 4: Simplify right side
    2,440.31x = 4,640,781.64
  5. Step 5: Solve for x
    x = 4,640,781.64/2,440.31
  6. Step 6: Final answer
    x = 1,901.72

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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.