Home / 7,091.28-10,636.80-2,160.71

Finding the Fourth Proportional to 7,091.28, 10,636.80 and 2,160.71

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Solution

The fourth proportional to 7,091.28, 10,636.80 and 2,160.71 is: 3,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.28 : 10,636.80 = 2,160.71 : x
  2. Step 2: Convert to fraction form
    7,091.28/10,636.80 = 2,160.71/x
  3. Step 3: Cross multiply
    7,091.28x = 10,636.80 × 2,160.71
  4. Step 4: Simplify right side
    7,091.28x = 22,982,986.94
  5. Step 5: Solve for x
    x = 22,982,986.94/7,091.28
  6. Step 6: Final answer
    x = 3,241.02

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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.