Home / 7,109.09-10,660.13-2,177.54

Finding the Fourth Proportional to 7,109.09, 10,660.13 and 2,177.54

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Solution

The fourth proportional to 7,109.09, 10,660.13 and 2,177.54 is: 3,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.09 : 10,660.13 = 2,177.54 : x
  2. Step 2: Convert to fraction form
    7,109.09/10,660.13 = 2,177.54/x
  3. Step 3: Cross multiply
    7,109.09x = 10,660.13 × 2,177.54
  4. Step 4: Simplify right side
    7,109.09x = 23,212,848.59
  5. Step 5: Solve for x
    x = 23,212,848.59/7,109.09
  6. Step 6: Final answer
    x = 3,265.23

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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.