Home / 2,189,456.40-3,286,642.20-1,693,021.20

Finding the Fourth Proportional to 2,189,456.40, 3,286,642.20 and 1,693,021.20

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Solution

The fourth proportional to 2,189,456.40, 3,286,642.20 and 1,693,021.20 is: 2,541,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,456.40 : 3,286,642.20 = 1,693,021.20 : x
  2. Step 2: Convert to fraction form
    2,189,456.40/3,286,642.20 = 1,693,021.20/x
  3. Step 3: Cross multiply
    2,189,456.40x = 3,286,642.20 × 1,693,021.20
  4. Step 4: Simplify right side
    2,189,456.40x = 5,564,354,921,414.64
  5. Step 5: Solve for x
    x = 5,564,354,921,414.64/2,189,456.40
  6. Step 6: Final answer
    x = 2,541,432.17

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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.