Home / 3,891,917.84-5,371,178.74-2,173,370.52

Finding the Fourth Proportional to 3,891,917.84, 5,371,178.74 and 2,173,370.52

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Solution

The fourth proportional to 3,891,917.84, 5,371,178.74 and 2,173,370.52 is: 2,999,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,917.84 : 5,371,178.74 = 2,173,370.52 : x
  2. Step 2: Convert to fraction form
    3,891,917.84/5,371,178.74 = 2,173,370.52/x
  3. Step 3: Cross multiply
    3,891,917.84x = 5,371,178.74 × 2,173,370.52
  4. Step 4: Simplify right side
    3,891,917.84x = 11,673,561,531,166.75
  5. Step 5: Solve for x
    x = 11,673,561,531,166.75/3,891,917.84
  6. Step 6: Final answer
    x = 2,999,436.78

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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.