Home / 3,469.61-5,202.28-1,621.12

Finding the Fourth Proportional to 3,469.61, 5,202.28 and 1,621.12

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Solution

The fourth proportional to 3,469.61, 5,202.28 and 1,621.12 is: 2,430.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.61 : 5,202.28 = 1,621.12 : x
  2. Step 2: Convert to fraction form
    3,469.61/5,202.28 = 1,621.12/x
  3. Step 3: Cross multiply
    3,469.61x = 5,202.28 × 1,621.12
  4. Step 4: Simplify right side
    3,469.61x = 8,433,520.15
  5. Step 5: Solve for x
    x = 8,433,520.15/3,469.61
  6. Step 6: Final answer
    x = 2,430.68

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1.5x scale

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.