Home / 2,148.92-2,963.82-1,440.52

Finding the Fourth Proportional to 2,148.92, 2,963.82 and 1,440.52

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Solution

The fourth proportional to 2,148.92, 2,963.82 and 1,440.52 is: 1,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.92 : 2,963.82 = 1,440.52 : x
  2. Step 2: Convert to fraction form
    2,148.92/2,963.82 = 1,440.52/x
  3. Step 3: Cross multiply
    2,148.92x = 2,963.82 × 1,440.52
  4. Step 4: Simplify right side
    2,148.92x = 4,269,441.99
  5. Step 5: Solve for x
    x = 4,269,441.99/2,148.92
  6. Step 6: Final answer
    x = 1,986.78

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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.