Home / 3,860,455.48-5,328,067.20-2,142,129.58

Finding the Fourth Proportional to 3,860,455.48, 5,328,067.20 and 2,142,129.58

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Solution

The fourth proportional to 3,860,455.48, 5,328,067.20 and 2,142,129.58 is: 2,956,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860,455.48 : 5,328,067.20 = 2,142,129.58 : x
  2. Step 2: Convert to fraction form
    3,860,455.48/5,328,067.20 = 2,142,129.58/x
  3. Step 3: Cross multiply
    3,860,455.48x = 5,328,067.20 × 2,142,129.58
  4. Step 4: Simplify right side
    3,860,455.48x = 11,413,410,353,347.78
  5. Step 5: Solve for x
    x = 11,413,410,353,347.78/3,860,455.48
  6. Step 6: Final answer
    x = 2,956,493.19

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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.