Home / 3,921,058.78-5,410,823.91-2,178,668.59

Finding the Fourth Proportional to 3,921,058.78, 5,410,823.91 and 2,178,668.59

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Solution

The fourth proportional to 3,921,058.78, 5,410,823.91 and 2,178,668.59 is: 3,006,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,058.78 : 5,410,823.91 = 2,178,668.59 : x
  2. Step 2: Convert to fraction form
    3,921,058.78/5,410,823.91 = 2,178,668.59/x
  3. Step 3: Cross multiply
    3,921,058.78x = 5,410,823.91 × 2,178,668.59
  4. Step 4: Simplify right side
    3,921,058.78x = 11,788,392,098,737.99
  5. Step 5: Solve for x
    x = 11,788,392,098,737.99/3,921,058.78
  6. Step 6: Final answer
    x = 3,006,430.85

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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.