Home / 3,621.28-5,000.88-2,380

Finding the Fourth Proportional to 3,621.28, 5,000.88 and 2,380

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Solution

The fourth proportional to 3,621.28, 5,000.88 and 2,380 is: 3,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.28 : 5,000.88 = 2,380 : x
  2. Step 2: Convert to fraction form
    3,621.28/5,000.88 = 2,380/x
  3. Step 3: Cross multiply
    3,621.28x = 5,000.88 × 2,380
  4. Step 4: Simplify right side
    3,621.28x = 11,902,094.40
  5. Step 5: Solve for x
    x = 11,902,094.40/3,621.28
  6. Step 6: Final answer
    x = 3,286.71

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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.