Home / 3,871,044.55-5,342,178.87-2,128,846.39

Finding the Fourth Proportional to 3,871,044.55, 5,342,178.87 and 2,128,846.39

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Solution

The fourth proportional to 3,871,044.55, 5,342,178.87 and 2,128,846.39 is: 2,937,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,044.55 : 5,342,178.87 = 2,128,846.39 : x
  2. Step 2: Convert to fraction form
    3,871,044.55/5,342,178.87 = 2,128,846.39/x
  3. Step 3: Cross multiply
    3,871,044.55x = 5,342,178.87 × 2,128,846.39
  4. Step 4: Simplify right side
    3,871,044.55x = 11,372,678,202,133.78
  5. Step 5: Solve for x
    x = 11,372,678,202,133.78/3,871,044.55
  6. Step 6: Final answer
    x = 2,937,883.58

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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.