Home / 2,161.22-3,239.40-1,063.28

Finding the Fourth Proportional to 2,161.22, 3,239.40 and 1,063.28

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Solution

The fourth proportional to 2,161.22, 3,239.40 and 1,063.28 is: 1,593.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.22 : 3,239.40 = 1,063.28 : x
  2. Step 2: Convert to fraction form
    2,161.22/3,239.40 = 1,063.28/x
  3. Step 3: Cross multiply
    2,161.22x = 3,239.40 × 1,063.28
  4. Step 4: Simplify right side
    2,161.22x = 3,444,389.23
  5. Step 5: Solve for x
    x = 3,444,389.23/2,161.22
  6. Step 6: Final answer
    x = 1,593.72

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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.