Home / 3,621.92-5,430.32-1,867.44

Finding the Fourth Proportional to 3,621.92, 5,430.32 and 1,867.44

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Solution

The fourth proportional to 3,621.92, 5,430.32 and 1,867.44 is: 2,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.92 : 5,430.32 = 1,867.44 : x
  2. Step 2: Convert to fraction form
    3,621.92/5,430.32 = 1,867.44/x
  3. Step 3: Cross multiply
    3,621.92x = 5,430.32 × 1,867.44
  4. Step 4: Simplify right side
    3,621.92x = 10,140,796.78
  5. Step 5: Solve for x
    x = 10,140,796.78/3,621.92
  6. Step 6: Final answer
    x = 2,799.84

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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.