Home / 3,869,947.80-5,340,531.39-2,127,646.83

Finding the Fourth Proportional to 3,869,947.80, 5,340,531.39 and 2,127,646.83

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Solution

The fourth proportional to 3,869,947.80, 5,340,531.39 and 2,127,646.83 is: 2,936,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869,947.80 : 5,340,531.39 = 2,127,646.83 : x
  2. Step 2: Convert to fraction form
    3,869,947.80/5,340,531.39 = 2,127,646.83/x
  3. Step 3: Cross multiply
    3,869,947.80x = 5,340,531.39 × 2,127,646.83
  4. Step 4: Simplify right side
    3,869,947.80x = 11,362,764,694,497.31
  5. Step 5: Solve for x
    x = 11,362,764,694,497.31/3,869,947.80
  6. Step 6: Final answer
    x = 2,936,154.51

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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.