Home / 3,918,471.05-5,407,000.39-2,175,903.52

Finding the Fourth Proportional to 3,918,471.05, 5,407,000.39 and 2,175,903.52

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Solution

The fourth proportional to 3,918,471.05, 5,407,000.39 and 2,175,903.52 is: 3,002,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,471.05 : 5,407,000.39 = 2,175,903.52 : x
  2. Step 2: Convert to fraction form
    3,918,471.05/5,407,000.39 = 2,175,903.52/x
  3. Step 3: Cross multiply
    3,918,471.05x = 5,407,000.39 × 2,175,903.52
  4. Step 4: Simplify right side
    3,918,471.05x = 11,765,111,170,444.75
  5. Step 5: Solve for x
    x = 11,765,111,170,444.75/3,918,471.05
  6. Step 6: Final answer
    x = 3,002,474.95

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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.