Home / 3,918,472.05-5,407,001.77-2,175,904.52

Finding the Fourth Proportional to 3,918,472.05, 5,407,001.77 and 2,175,904.52

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Solution

The fourth proportional to 3,918,472.05, 5,407,001.77 and 2,175,904.52 is: 3,002,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,472.05 : 5,407,001.77 = 2,175,904.52 : x
  2. Step 2: Convert to fraction form
    3,918,472.05/5,407,001.77 = 2,175,904.52/x
  3. Step 3: Cross multiply
    3,918,472.05x = 5,407,001.77 × 2,175,904.52
  4. Step 4: Simplify right side
    3,918,472.05x = 11,765,119,590,991
  5. Step 5: Solve for x
    x = 11,765,119,590,991/3,918,472.05
  6. Step 6: Final answer
    x = 3,002,476.33

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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.