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Finding the Fourth Proportional to 6,477.92, 9,716.88 and 1,860.92

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Solution

The fourth proportional to 6,477.92, 9,716.88 and 1,860.92 is: 2,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477.92 : 9,716.88 = 1,860.92 : x
  2. Step 2: Convert to fraction form
    6,477.92/9,716.88 = 1,860.92/x
  3. Step 3: Cross multiply
    6,477.92x = 9,716.88 × 1,860.92
  4. Step 4: Simplify right side
    6,477.92x = 18,082,336.33
  5. Step 5: Solve for x
    x = 18,082,336.33/6,477.92
  6. Step 6: Final answer
    x = 2,791.38

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Similar ratio
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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.