Home / 3,621.28-4,999.75-2,427.80

Finding the Fourth Proportional to 3,621.28, 4,999.75 and 2,427.80

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Solution

The fourth proportional to 3,621.28, 4,999.75 and 2,427.80 is: 3,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.28 : 4,999.75 = 2,427.80 : x
  2. Step 2: Convert to fraction form
    3,621.28/4,999.75 = 2,427.80/x
  3. Step 3: Cross multiply
    3,621.28x = 4,999.75 × 2,427.80
  4. Step 4: Simplify right side
    3,621.28x = 12,138,393.05
  5. Step 5: Solve for x
    x = 12,138,393.05/3,621.28
  6. Step 6: Final answer
    x = 3,351.96

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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.