Home / 2,161.03-3,242.18-700.15

Finding the Fourth Proportional to 2,161.03, 3,242.18 and 700.15

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Solution

The fourth proportional to 2,161.03, 3,242.18 and 700.15 is: 1,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.03 : 3,242.18 = 700.15 : x
  2. Step 2: Convert to fraction form
    2,161.03/3,242.18 = 700.15/x
  3. Step 3: Cross multiply
    2,161.03x = 3,242.18 × 700.15
  4. Step 4: Simplify right side
    2,161.03x = 2,270,005.97
  5. Step 5: Solve for x
    x = 2,270,005.97/2,161.03
  6. Step 6: Final answer
    x = 1,050.43

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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.