Home / 3,914.88-5,402.61-2,146.38

Finding the Fourth Proportional to 3,914.88, 5,402.61 and 2,146.38

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Solution

The fourth proportional to 3,914.88, 5,402.61 and 2,146.38 is: 2,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.88 : 5,402.61 = 2,146.38 : x
  2. Step 2: Convert to fraction form
    3,914.88/5,402.61 = 2,146.38/x
  3. Step 3: Cross multiply
    3,914.88x = 5,402.61 × 2,146.38
  4. Step 4: Simplify right side
    3,914.88x = 11,596,054.05
  5. Step 5: Solve for x
    x = 11,596,054.05/3,914.88
  6. Step 6: Final answer
    x = 2,962.05

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1.5x scale

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.