Home / 5,661.57-8,485.18-3,197.78

Finding the Fourth Proportional to 5,661.57, 8,485.18 and 3,197.78

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Solution

The fourth proportional to 5,661.57, 8,485.18 and 3,197.78 is: 4,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.57 : 8,485.18 = 3,197.78 : x
  2. Step 2: Convert to fraction form
    5,661.57/8,485.18 = 3,197.78/x
  3. Step 3: Cross multiply
    5,661.57x = 8,485.18 × 3,197.78
  4. Step 4: Simplify right side
    5,661.57x = 27,133,729.29
  5. Step 5: Solve for x
    x = 27,133,729.29/5,661.57
  6. Step 6: Final answer
    x = 4,792.61

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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.