Home / 6,477.72-9,717.49-3,190.85

Finding the Fourth Proportional to 6,477.72, 9,717.49 and 3,190.85

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Solution

The fourth proportional to 6,477.72, 9,717.49 and 3,190.85 is: 4,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477.72 : 9,717.49 = 3,190.85 : x
  2. Step 2: Convert to fraction form
    6,477.72/9,717.49 = 3,190.85/x
  3. Step 3: Cross multiply
    6,477.72x = 9,717.49 × 3,190.85
  4. Step 4: Simplify right side
    6,477.72x = 31,007,004.38
  5. Step 5: Solve for x
    x = 31,007,004.38/6,477.72
  6. Step 6: Final answer
    x = 4,786.72

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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.