Home / 7,106.76-10,661.78-2,177.12

Finding the Fourth Proportional to 7,106.76, 10,661.78 and 2,177.12

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Solution

The fourth proportional to 7,106.76, 10,661.78 and 2,177.12 is: 3,266.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.76 : 10,661.78 = 2,177.12 : x
  2. Step 2: Convert to fraction form
    7,106.76/10,661.78 = 2,177.12/x
  3. Step 3: Cross multiply
    7,106.76x = 10,661.78 × 2,177.12
  4. Step 4: Simplify right side
    7,106.76x = 23,211,974.47
  5. Step 5: Solve for x
    x = 23,211,974.47/7,106.76
  6. Step 6: Final answer
    x = 3,266.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.