Home / 2,481.60-3,424.78-1,640.84

Finding the Fourth Proportional to 2,481.60, 3,424.78 and 1,640.84

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Solution

The fourth proportional to 2,481.60, 3,424.78 and 1,640.84 is: 2,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.60 : 3,424.78 = 1,640.84 : x
  2. Step 2: Convert to fraction form
    2,481.60/3,424.78 = 1,640.84/x
  3. Step 3: Cross multiply
    2,481.60x = 3,424.78 × 1,640.84
  4. Step 4: Simplify right side
    2,481.60x = 5,619,520.21
  5. Step 5: Solve for x
    x = 5,619,520.21/2,481.60
  6. Step 6: Final answer
    x = 2,264.47

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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.