Home / 3,871,351.38-5,342,602.07-2,129,155.52

Finding the Fourth Proportional to 3,871,351.38, 5,342,602.07 and 2,129,155.52

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Solution

The fourth proportional to 3,871,351.38, 5,342,602.07 and 2,129,155.52 is: 2,938,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,351.38 : 5,342,602.07 = 2,129,155.52 : x
  2. Step 2: Convert to fraction form
    3,871,351.38/5,342,602.07 = 2,129,155.52/x
  3. Step 3: Cross multiply
    3,871,351.38x = 5,342,602.07 × 2,129,155.52
  4. Step 4: Simplify right side
    3,871,351.38x = 11,375,230,651,145.14
  5. Step 5: Solve for x
    x = 11,375,230,651,145.14/3,871,351.38
  6. Step 6: Final answer
    x = 2,938,310.05

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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.