Home / 3,914.93-5,402.61-2,146.55

Finding the Fourth Proportional to 3,914.93, 5,402.61 and 2,146.55

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Solution

The fourth proportional to 3,914.93, 5,402.61 and 2,146.55 is: 2,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.93 : 5,402.61 = 2,146.55 : x
  2. Step 2: Convert to fraction form
    3,914.93/5,402.61 = 2,146.55/x
  3. Step 3: Cross multiply
    3,914.93x = 5,402.61 × 2,146.55
  4. Step 4: Simplify right side
    3,914.93x = 11,596,945.48
  5. Step 5: Solve for x
    x = 11,596,945.48/3,914.93
  6. Step 6: Final answer
    x = 2,962.23

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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.