Home / 7,106.28-9,806.31-3,961.86

Finding the Fourth Proportional to 7,106.28, 9,806.31 and 3,961.86

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Solution

The fourth proportional to 7,106.28, 9,806.31 and 3,961.86 is: 5,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.28 : 9,806.31 = 3,961.86 : x
  2. Step 2: Convert to fraction form
    7,106.28/9,806.31 = 3,961.86/x
  3. Step 3: Cross multiply
    7,106.28x = 9,806.31 × 3,961.86
  4. Step 4: Simplify right side
    7,106.28x = 38,851,227.34
  5. Step 5: Solve for x
    x = 38,851,227.34/7,106.28
  6. Step 6: Final answer
    x = 5,467.17

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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.