Home / 3,861.54-5,329.18-3,722.12

Finding the Fourth Proportional to 3,861.54, 5,329.18 and 3,722.12

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Solution

The fourth proportional to 3,861.54, 5,329.18 and 3,722.12 is: 5,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.54 : 5,329.18 = 3,722.12 : x
  2. Step 2: Convert to fraction form
    3,861.54/5,329.18 = 3,722.12/x
  3. Step 3: Cross multiply
    3,861.54x = 5,329.18 × 3,722.12
  4. Step 4: Simplify right side
    3,861.54x = 19,835,847.46
  5. Step 5: Solve for x
    x = 19,835,847.46/3,861.54
  6. Step 6: Final answer
    x = 5,136.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.