Home / 3,871,034.54-5,342,165.06-2,128,836.38

Finding the Fourth Proportional to 3,871,034.54, 5,342,165.06 and 2,128,836.38

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Solution

The fourth proportional to 3,871,034.54, 5,342,165.06 and 2,128,836.38 is: 2,937,869.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,034.54 : 5,342,165.06 = 2,128,836.38 : x
  2. Step 2: Convert to fraction form
    3,871,034.54/5,342,165.06 = 2,128,836.38/x
  3. Step 3: Cross multiply
    3,871,034.54x = 5,342,165.06 × 2,128,836.38
  4. Step 4: Simplify right side
    3,871,034.54x = 11,372,595,338,387.25
  5. Step 5: Solve for x
    x = 11,372,595,338,387.25/3,871,034.54
  6. Step 6: Final answer
    x = 2,937,869.77

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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.