Home / 3,914.60-5,402.07-2,146.19

Finding the Fourth Proportional to 3,914.60, 5,402.07 and 2,146.19

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Solution

The fourth proportional to 3,914.60, 5,402.07 and 2,146.19 is: 2,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.60 : 5,402.07 = 2,146.19 : x
  2. Step 2: Convert to fraction form
    3,914.60/5,402.07 = 2,146.19/x
  3. Step 3: Cross multiply
    3,914.60x = 5,402.07 × 2,146.19
  4. Step 4: Simplify right side
    3,914.60x = 11,593,841.60
  5. Step 5: Solve for x
    x = 11,593,841.60/3,914.60
  6. Step 6: Final answer
    x = 2,961.70

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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.