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Finding the Fourth Proportional to 4,879.68, 6,719.52 and 4,777.44

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Solution

The fourth proportional to 4,879.68, 6,719.52 and 4,777.44 is: 6,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.68 : 6,719.52 = 4,777.44 : x
  2. Step 2: Convert to fraction form
    4,879.68/6,719.52 = 4,777.44/x
  3. Step 3: Cross multiply
    4,879.68x = 6,719.52 × 4,777.44
  4. Step 4: Simplify right side
    4,879.68x = 32,102,103.63
  5. Step 5: Solve for x
    x = 32,102,103.63/4,879.68
  6. Step 6: Final answer
    x = 6,578.73

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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.