Home / 2,140,367.31-3,206,273.27-1,286,971.65

Finding the Fourth Proportional to 2,140,367.31, 3,206,273.27 and 1,286,971.65

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Solution

The fourth proportional to 2,140,367.31, 3,206,273.27 and 1,286,971.65 is: 1,927,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,367.31 : 3,206,273.27 = 1,286,971.65 : x
  2. Step 2: Convert to fraction form
    2,140,367.31/3,206,273.27 = 1,286,971.65/x
  3. Step 3: Cross multiply
    2,140,367.31x = 3,206,273.27 × 1,286,971.65
  4. Step 4: Simplify right side
    2,140,367.31x = 4,126,382,794,207.94
  5. Step 5: Solve for x
    x = 4,126,382,794,207.94/2,140,367.31
  6. Step 6: Final answer
    x = 1,927,885.36

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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.