Home / 5,684.46-8,515.62-3,211.80

Finding the Fourth Proportional to 5,684.46, 8,515.62 and 3,211.80

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Solution

The fourth proportional to 5,684.46, 8,515.62 and 3,211.80 is: 4,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,684.46 : 8,515.62 = 3,211.80 : x
  2. Step 2: Convert to fraction form
    5,684.46/8,515.62 = 3,211.80/x
  3. Step 3: Cross multiply
    5,684.46x = 8,515.62 × 3,211.80
  4. Step 4: Simplify right side
    5,684.46x = 27,350,468.32
  5. Step 5: Solve for x
    x = 27,350,468.32/5,684.46
  6. Step 6: Final answer
    x = 4,811.45

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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.