Home / 2,052.40-3,062.80-1,639.60

Finding the Fourth Proportional to 2,052.40, 3,062.80 and 1,639.60

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Solution

The fourth proportional to 2,052.40, 3,062.80 and 1,639.60 is: 2,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.40 : 3,062.80 = 1,639.60 : x
  2. Step 2: Convert to fraction form
    2,052.40/3,062.80 = 1,639.60/x
  3. Step 3: Cross multiply
    2,052.40x = 3,062.80 × 1,639.60
  4. Step 4: Simplify right side
    2,052.40x = 5,021,766.88
  5. Step 5: Solve for x
    x = 5,021,766.88/2,052.40
  6. Step 6: Final answer
    x = 2,446.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.