Home / 3,861,021.30-5,328,848.97-2,142,693.78

Finding the Fourth Proportional to 3,861,021.30, 5,328,848.97 and 2,142,693.78

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Solution

The fourth proportional to 3,861,021.30, 5,328,848.97 and 2,142,693.78 is: 2,957,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861,021.30 : 5,328,848.97 = 2,142,693.78 : x
  2. Step 2: Convert to fraction form
    3,861,021.30/5,328,848.97 = 2,142,693.78/x
  3. Step 3: Cross multiply
    3,861,021.30x = 5,328,848.97 × 2,142,693.78
  4. Step 4: Simplify right side
    3,861,021.30x = 11,418,091,542,578.40
  5. Step 5: Solve for x
    x = 11,418,091,542,578.40/3,861,021.30
  6. Step 6: Final answer
    x = 2,957,272.35

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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.