Home / 3,940,362.75-5,437,707.75-2,221,479.12

Finding the Fourth Proportional to 3,940,362.75, 5,437,707.75 and 2,221,479.12

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Solution

The fourth proportional to 3,940,362.75, 5,437,707.75 and 2,221,479.12 is: 3,065,645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,362.75 : 5,437,707.75 = 2,221,479.12 : x
  2. Step 2: Convert to fraction form
    3,940,362.75/5,437,707.75 = 2,221,479.12/x
  3. Step 3: Cross multiply
    3,940,362.75x = 5,437,707.75 × 2,221,479.12
  4. Step 4: Simplify right side
    3,940,362.75x = 12,079,754,227,287.18
  5. Step 5: Solve for x
    x = 12,079,754,227,287.18/3,940,362.75
  6. Step 6: Final answer
    x = 3,065,645.22

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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.