Home / 3,149.64-4,743.20-2,743.68

Finding the Fourth Proportional to 3,149.64, 4,743.20 and 2,743.68

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Solution

The fourth proportional to 3,149.64, 4,743.20 and 2,743.68 is: 4,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.64 : 4,743.20 = 2,743.68 : x
  2. Step 2: Convert to fraction form
    3,149.64/4,743.20 = 2,743.68/x
  3. Step 3: Cross multiply
    3,149.64x = 4,743.20 × 2,743.68
  4. Step 4: Simplify right side
    3,149.64x = 13,013,822.98
  5. Step 5: Solve for x
    x = 13,013,822.98/3,149.64
  6. Step 6: Final answer
    x = 4,131.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.