Home / 3,974-5,484.12-2,205.89

Finding the Fourth Proportional to 3,974, 5,484.12 and 2,205.89

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Solution

The fourth proportional to 3,974, 5,484.12 and 2,205.89 is: 3,044.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974 : 5,484.12 = 2,205.89 : x
  2. Step 2: Convert to fraction form
    3,974/5,484.12 = 2,205.89/x
  3. Step 3: Cross multiply
    3,974x = 5,484.12 × 2,205.89
  4. Step 4: Simplify right side
    3,974x = 12,097,365.47
  5. Step 5: Solve for x
    x = 12,097,365.47/3,974
  6. Step 6: Final answer
    x = 3,044.13

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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.