Home / 5,751-7,942.86-3,884.76

Finding the Fourth Proportional to 5,751, 7,942.86 and 3,884.76

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Solution

The fourth proportional to 5,751, 7,942.86 and 3,884.76 is: 5,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751 : 7,942.86 = 3,884.76 : x
  2. Step 2: Convert to fraction form
    5,751/7,942.86 = 3,884.76/x
  3. Step 3: Cross multiply
    5,751x = 7,942.86 × 3,884.76
  4. Step 4: Simplify right side
    5,751x = 30,856,104.81
  5. Step 5: Solve for x
    x = 30,856,104.81/5,751
  6. Step 6: Final answer
    x = 5,365.35

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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.