Home / 5,621.10-8,420.35-2,801.44

Finding the Fourth Proportional to 5,621.10, 8,420.35 and 2,801.44

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Solution

The fourth proportional to 5,621.10, 8,420.35 and 2,801.44 is: 4,196.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.10 : 8,420.35 = 2,801.44 : x
  2. Step 2: Convert to fraction form
    5,621.10/8,420.35 = 2,801.44/x
  3. Step 3: Cross multiply
    5,621.10x = 8,420.35 × 2,801.44
  4. Step 4: Simplify right side
    5,621.10x = 23,589,105.30
  5. Step 5: Solve for x
    x = 23,589,105.30/5,621.10
  6. Step 6: Final answer
    x = 4,196.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.