Home / 7,091.60-10,637.42-2,161.22

Finding the Fourth Proportional to 7,091.60, 10,637.42 and 2,161.22

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Solution

The fourth proportional to 7,091.60, 10,637.42 and 2,161.22 is: 3,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.60 : 10,637.42 = 2,161.22 : x
  2. Step 2: Convert to fraction form
    7,091.60/10,637.42 = 2,161.22/x
  3. Step 3: Cross multiply
    7,091.60x = 10,637.42 × 2,161.22
  4. Step 4: Simplify right side
    7,091.60x = 22,989,740.86
  5. Step 5: Solve for x
    x = 22,989,740.86/7,091.60
  6. Step 6: Final answer
    x = 3,241.83

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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.