Home / 3,891,205.74-5,369,917.02-2,148,992.64

Finding the Fourth Proportional to 3,891,205.74, 5,369,917.02 and 2,148,992.64

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Solution

The fourth proportional to 3,891,205.74, 5,369,917.02 and 2,148,992.64 is: 2,965,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,205.74 : 5,369,917.02 = 2,148,992.64 : x
  2. Step 2: Convert to fraction form
    3,891,205.74/5,369,917.02 = 2,148,992.64/x
  3. Step 3: Cross multiply
    3,891,205.74x = 5,369,917.02 × 2,148,992.64
  4. Step 4: Simplify right side
    3,891,205.74x = 11,539,912,153,390.73
  5. Step 5: Solve for x
    x = 11,539,912,153,390.73/3,891,205.74
  6. Step 6: Final answer
    x = 2,965,639.17

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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.