Home / 3,789,128.84-5,228,936.78-2,070,212.45

Finding the Fourth Proportional to 3,789,128.84, 5,228,936.78 and 2,070,212.45

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Solution

The fourth proportional to 3,789,128.84, 5,228,936.78 and 2,070,212.45 is: 2,856,859.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789,128.84 : 5,228,936.78 = 2,070,212.45 : x
  2. Step 2: Convert to fraction form
    3,789,128.84/5,228,936.78 = 2,070,212.45/x
  3. Step 3: Cross multiply
    3,789,128.84x = 5,228,936.78 × 2,070,212.45
  4. Step 4: Simplify right side
    3,789,128.84x = 10,825,009,985,723.17
  5. Step 5: Solve for x
    x = 10,825,009,985,723.17/3,789,128.84
  6. Step 6: Final answer
    x = 2,856,859.84

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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.