Home / 7,106.64-9,806.06-4,121.86

Finding the Fourth Proportional to 7,106.64, 9,806.06 and 4,121.86

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Solution

The fourth proportional to 7,106.64, 9,806.06 and 4,121.86 is: 5,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.64 : 9,806.06 = 4,121.86 : x
  2. Step 2: Convert to fraction form
    7,106.64/9,806.06 = 4,121.86/x
  3. Step 3: Cross multiply
    7,106.64x = 9,806.06 × 4,121.86
  4. Step 4: Simplify right side
    7,106.64x = 40,419,206.47
  5. Step 5: Solve for x
    x = 40,419,206.47/7,106.64
  6. Step 6: Final answer
    x = 5,687.53

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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.