Home / 3,929,710.29-5,422,999.37-2,187,342.11

Finding the Fourth Proportional to 3,929,710.29, 5,422,999.37 and 2,187,342.11

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Solution

The fourth proportional to 3,929,710.29, 5,422,999.37 and 2,187,342.11 is: 3,018,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,710.29 : 5,422,999.37 = 2,187,342.11 : x
  2. Step 2: Convert to fraction form
    3,929,710.29/5,422,999.37 = 2,187,342.11/x
  3. Step 3: Cross multiply
    3,929,710.29x = 5,422,999.37 × 2,187,342.11
  4. Step 4: Simplify right side
    3,929,710.29x = 11,861,954,846,452.76
  5. Step 5: Solve for x
    x = 11,861,954,846,452.76/3,929,710.29
  6. Step 6: Final answer
    x = 3,018,531.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.