Home / 2,768.47-3,819.67-1,648.85

Finding the Fourth Proportional to 2,768.47, 3,819.67 and 1,648.85

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Solution

The fourth proportional to 2,768.47, 3,819.67 and 1,648.85 is: 2,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.47 : 3,819.67 = 1,648.85 : x
  2. Step 2: Convert to fraction form
    2,768.47/3,819.67 = 1,648.85/x
  3. Step 3: Cross multiply
    2,768.47x = 3,819.67 × 1,648.85
  4. Step 4: Simplify right side
    2,768.47x = 6,298,062.88
  5. Step 5: Solve for x
    x = 6,298,062.88/2,768.47
  6. Step 6: Final answer
    x = 2,274.93

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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.