Home / 3,940,792.44-5,438,302.86-2,129,956.44

Finding the Fourth Proportional to 3,940,792.44, 5,438,302.86 and 2,129,956.44

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Solution

The fourth proportional to 3,940,792.44, 5,438,302.86 and 2,129,956.44 is: 2,939,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,792.44 : 5,438,302.86 = 2,129,956.44 : x
  2. Step 2: Convert to fraction form
    3,940,792.44/5,438,302.86 = 2,129,956.44/x
  3. Step 3: Cross multiply
    3,940,792.44x = 5,438,302.86 × 2,129,956.44
  4. Step 4: Simplify right side
    3,940,792.44x = 11,583,348,199,327.42
  5. Step 5: Solve for x
    x = 11,583,348,199,327.42/3,940,792.44
  6. Step 6: Final answer
    x = 2,939,344.91

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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.