Home / 4,183.60-6,270.63-1,989.22

Finding the Fourth Proportional to 4,183.60, 6,270.63 and 1,989.22

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Solution

The fourth proportional to 4,183.60, 6,270.63 and 1,989.22 is: 2,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,183.60 : 6,270.63 = 1,989.22 : x
  2. Step 2: Convert to fraction form
    4,183.60/6,270.63 = 1,989.22/x
  3. Step 3: Cross multiply
    4,183.60x = 6,270.63 × 1,989.22
  4. Step 4: Simplify right side
    4,183.60x = 12,473,662.61
  5. Step 5: Solve for x
    x = 12,473,662.61/4,183.60
  6. Step 6: Final answer
    x = 2,981.56

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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.