Home / 3,121,978.80-4,681,801.80-2,172,529.20

Finding the Fourth Proportional to 3,121,978.80, 4,681,801.80 and 2,172,529.20

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Solution

The fourth proportional to 3,121,978.80, 4,681,801.80 and 2,172,529.20 is: 3,257,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,978.80 : 4,681,801.80 = 2,172,529.20 : x
  2. Step 2: Convert to fraction form
    3,121,978.80/4,681,801.80 = 2,172,529.20/x
  3. Step 3: Cross multiply
    3,121,978.80x = 4,681,801.80 × 2,172,529.20
  4. Step 4: Simplify right side
    3,121,978.80x = 10,171,351,119,112.56
  5. Step 5: Solve for x
    x = 10,171,351,119,112.56/3,121,978.80
  6. Step 6: Final answer
    x = 3,257,982.12

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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.