Home / 3,989,721.80-5,980,694.70-2,282,112.20

Finding the Fourth Proportional to 3,989,721.80, 5,980,694.70 and 2,282,112.20

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Solution

The fourth proportional to 3,989,721.80, 5,980,694.70 and 2,282,112.20 is: 3,420,944.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,721.80 : 5,980,694.70 = 2,282,112.20 : x
  2. Step 2: Convert to fraction form
    3,989,721.80/5,980,694.70 = 2,282,112.20/x
  3. Step 3: Cross multiply
    3,989,721.80x = 5,980,694.70 × 2,282,112.20
  4. Step 4: Simplify right side
    3,989,721.80x = 13,648,616,339,345.34
  5. Step 5: Solve for x
    x = 13,648,616,339,345.34/3,989,721.80
  6. Step 6: Final answer
    x = 3,420,944.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.