Home / 3,330.32-4,992.13-2,161.08

Finding the Fourth Proportional to 3,330.32, 4,992.13 and 2,161.08

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Solution

The fourth proportional to 3,330.32, 4,992.13 and 2,161.08 is: 3,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.32 : 4,992.13 = 2,161.08 : x
  2. Step 2: Convert to fraction form
    3,330.32/4,992.13 = 2,161.08/x
  3. Step 3: Cross multiply
    3,330.32x = 4,992.13 × 2,161.08
  4. Step 4: Simplify right side
    3,330.32x = 10,788,395.00
  5. Step 5: Solve for x
    x = 10,788,395.00/3,330.32
  6. Step 6: Final answer
    x = 3,239.45

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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.