Home / 3,914.98-5,402.60-2,236.90

Finding the Fourth Proportional to 3,914.98, 5,402.60 and 2,236.90

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Solution

The fourth proportional to 3,914.98, 5,402.60 and 2,236.90 is: 3,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.98 : 5,402.60 = 2,236.90 : x
  2. Step 2: Convert to fraction form
    3,914.98/5,402.60 = 2,236.90/x
  3. Step 3: Cross multiply
    3,914.98x = 5,402.60 × 2,236.90
  4. Step 4: Simplify right side
    3,914.98x = 12,085,075.94
  5. Step 5: Solve for x
    x = 12,085,075.94/3,914.98
  6. Step 6: Final answer
    x = 3,086.88

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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.