Home / 3,871,879.84-5,342,974.71-2,152,963.45

Finding the Fourth Proportional to 3,871,879.84, 5,342,974.71 and 2,152,963.45

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Solution

The fourth proportional to 3,871,879.84, 5,342,974.71 and 2,152,963.45 is: 2,970,967.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,879.84 : 5,342,974.71 = 2,152,963.45 : x
  2. Step 2: Convert to fraction form
    3,871,879.84/5,342,974.71 = 2,152,963.45/x
  3. Step 3: Cross multiply
    3,871,879.84x = 5,342,974.71 × 2,152,963.45
  4. Step 4: Simplify right side
    3,871,879.84x = 11,503,229,264,904.35
  5. Step 5: Solve for x
    x = 11,503,229,264,904.35/3,871,879.84
  6. Step 6: Final answer
    x = 2,970,967.52

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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.