Home / 7,906.81-10,911.61-4,321.92

Finding the Fourth Proportional to 7,906.81, 10,911.61 and 4,321.92

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Solution

The fourth proportional to 7,906.81, 10,911.61 and 4,321.92 is: 5,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.81 : 10,911.61 = 4,321.92 : x
  2. Step 2: Convert to fraction form
    7,906.81/10,911.61 = 4,321.92/x
  3. Step 3: Cross multiply
    7,906.81x = 10,911.61 × 4,321.92
  4. Step 4: Simplify right side
    7,906.81x = 47,159,083.88
  5. Step 5: Solve for x
    x = 47,159,083.88/7,906.81
  6. Step 6: Final answer
    x = 5,964.36

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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.