Home / 3,861,172.09-5,328,418.31-2,142,288.55

Finding the Fourth Proportional to 3,861,172.09, 5,328,418.31 and 2,142,288.55

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Solution

The fourth proportional to 3,861,172.09, 5,328,418.31 and 2,142,288.55 is: 2,956,358.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861,172.09 : 5,328,418.31 = 2,142,288.55 : x
  2. Step 2: Convert to fraction form
    3,861,172.09/5,328,418.31 = 2,142,288.55/x
  3. Step 3: Cross multiply
    3,861,172.09x = 5,328,418.31 × 2,142,288.55
  4. Step 4: Simplify right side
    3,861,172.09x = 11,415,009,535,123.35
  5. Step 5: Solve for x
    x = 11,415,009,535,123.35/3,861,172.09
  6. Step 6: Final answer
    x = 2,956,358.66

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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.