Home / 3,421,690.92-4,722,985.13-1,972,355.49

Finding the Fourth Proportional to 3,421,690.92, 4,722,985.13 and 1,972,355.49

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Solution

The fourth proportional to 3,421,690.92, 4,722,985.13 and 1,972,355.49 is: 2,722,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421,690.92 : 4,722,985.13 = 1,972,355.49 : x
  2. Step 2: Convert to fraction form
    3,421,690.92/4,722,985.13 = 1,972,355.49/x
  3. Step 3: Cross multiply
    3,421,690.92x = 4,722,985.13 × 1,972,355.49
  4. Step 4: Simplify right side
    3,421,690.92x = 9,315,405,640,482.09
  5. Step 5: Solve for x
    x = 9,315,405,640,482.09/3,421,690.92
  6. Step 6: Final answer
    x = 2,722,456.78

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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.