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Finding the Fourth Proportional to 4,479.42, 6,719.44 and 1,192.44

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Solution

The fourth proportional to 4,479.42, 6,719.44 and 1,192.44 is: 1,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.42 : 6,719.44 = 1,192.44 : x
  2. Step 2: Convert to fraction form
    4,479.42/6,719.44 = 1,192.44/x
  3. Step 3: Cross multiply
    4,479.42x = 6,719.44 × 1,192.44
  4. Step 4: Simplify right side
    4,479.42x = 8,012,529.03
  5. Step 5: Solve for x
    x = 8,012,529.03/4,479.42
  6. Step 6: Final answer
    x = 1,788.74

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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.