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Finding the Fourth Proportional to 6,404.24, 8,837.81 and 3,571.65

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Solution

The fourth proportional to 6,404.24, 8,837.81 and 3,571.65 is: 4,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.24 : 8,837.81 = 3,571.65 : x
  2. Step 2: Convert to fraction form
    6,404.24/8,837.81 = 3,571.65/x
  3. Step 3: Cross multiply
    6,404.24x = 8,837.81 × 3,571.65
  4. Step 4: Simplify right side
    6,404.24x = 31,565,519.90
  5. Step 5: Solve for x
    x = 31,565,519.90/6,404.24
  6. Step 6: Final answer
    x = 4,928.85

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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.