Home / 2,189,921.81-3,000,142.71-2,108,049.03

Finding the Fourth Proportional to 2,189,921.81, 3,000,142.71 and 2,108,049.03

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Solution

The fourth proportional to 2,189,921.81, 3,000,142.71 and 2,108,049.03 is: 2,887,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,921.81 : 3,000,142.71 = 2,108,049.03 : x
  2. Step 2: Convert to fraction form
    2,189,921.81/3,000,142.71 = 2,108,049.03/x
  3. Step 3: Cross multiply
    2,189,921.81x = 3,000,142.71 × 2,108,049.03
  4. Step 4: Simplify right side
    2,189,921.81x = 6,324,447,929,677.07
  5. Step 5: Solve for x
    x = 6,324,447,929,677.07/2,189,921.81
  6. Step 6: Final answer
    x = 2,887,978.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.