Home / 3,186.14-4,397.07-2,122.07

Finding the Fourth Proportional to 3,186.14, 4,397.07 and 2,122.07

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Solution

The fourth proportional to 3,186.14, 4,397.07 and 2,122.07 is: 2,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.14 : 4,397.07 = 2,122.07 : x
  2. Step 2: Convert to fraction form
    3,186.14/4,397.07 = 2,122.07/x
  3. Step 3: Cross multiply
    3,186.14x = 4,397.07 × 2,122.07
  4. Step 4: Simplify right side
    3,186.14x = 9,330,890.33
  5. Step 5: Solve for x
    x = 9,330,890.33/3,186.14
  6. Step 6: Final answer
    x = 2,928.59

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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.