Home / 3,730.39-5,147.82-2,051.78

Finding the Fourth Proportional to 3,730.39, 5,147.82 and 2,051.78

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Solution

The fourth proportional to 3,730.39, 5,147.82 and 2,051.78 is: 2,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.39 : 5,147.82 = 2,051.78 : x
  2. Step 2: Convert to fraction form
    3,730.39/5,147.82 = 2,051.78/x
  3. Step 3: Cross multiply
    3,730.39x = 5,147.82 × 2,051.78
  4. Step 4: Simplify right side
    3,730.39x = 10,562,194.12
  5. Step 5: Solve for x
    x = 10,562,194.12/3,730.39
  6. Step 6: Final answer
    x = 2,831.39

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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.