Home / 3,871,879.90-5,342,974.80-2,152,963.51

Finding the Fourth Proportional to 3,871,879.90, 5,342,974.80 and 2,152,963.51

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Solution

The fourth proportional to 3,871,879.90, 5,342,974.80 and 2,152,963.51 is: 2,970,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,879.90 : 5,342,974.80 = 2,152,963.51 : x
  2. Step 2: Convert to fraction form
    3,871,879.90/5,342,974.80 = 2,152,963.51/x
  3. Step 3: Cross multiply
    3,871,879.90x = 5,342,974.80 × 2,152,963.51
  4. Step 4: Simplify right side
    3,871,879.90x = 11,503,229,779,249.55
  5. Step 5: Solve for x
    x = 11,503,229,779,249.55/3,871,879.90
  6. Step 6: Final answer
    x = 2,970,967.61

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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.