Home / 4,919.72-6,782.58-4,766.84

Finding the Fourth Proportional to 4,919.72, 6,782.58 and 4,766.84

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Solution

The fourth proportional to 4,919.72, 6,782.58 and 4,766.84 is: 6,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.72 : 6,782.58 = 4,766.84 : x
  2. Step 2: Convert to fraction form
    4,919.72/6,782.58 = 4,766.84/x
  3. Step 3: Cross multiply
    4,919.72x = 6,782.58 × 4,766.84
  4. Step 4: Simplify right side
    4,919.72x = 32,331,473.65
  5. Step 5: Solve for x
    x = 32,331,473.65/4,919.72
  6. Step 6: Final answer
    x = 6,571.81

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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.