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Finding the Fourth Proportional to 4,786.08, 7,166.88 and 3,813.60

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Solution

The fourth proportional to 4,786.08, 7,166.88 and 3,813.60 is: 5,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.08 : 7,166.88 = 3,813.60 : x
  2. Step 2: Convert to fraction form
    4,786.08/7,166.88 = 3,813.60/x
  3. Step 3: Cross multiply
    4,786.08x = 7,166.88 × 3,813.60
  4. Step 4: Simplify right side
    4,786.08x = 27,331,613.57
  5. Step 5: Solve for x
    x = 27,331,613.57/4,786.08
  6. Step 6: Final answer
    x = 5,710.65

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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.