Home / 3,940,810.51-5,438,320.83-2,198,479.90

Finding the Fourth Proportional to 3,940,810.51, 5,438,320.83 and 2,198,479.90

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Solution

The fourth proportional to 3,940,810.51, 5,438,320.83 and 2,198,479.90 is: 3,033,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,810.51 : 5,438,320.83 = 2,198,479.90 : x
  2. Step 2: Convert to fraction form
    3,940,810.51/5,438,320.83 = 2,198,479.90/x
  3. Step 3: Cross multiply
    3,940,810.51x = 5,438,320.83 × 2,198,479.90
  4. Step 4: Simplify right side
    3,940,810.51x = 11,956,039,034,506.32
  5. Step 5: Solve for x
    x = 11,956,039,034,506.32/3,940,810.51
  6. Step 6: Final answer
    x = 3,033,903.56

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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.