Home / 7,183.28-10,787.28-4,279.84

Finding the Fourth Proportional to 7,183.28, 10,787.28 and 4,279.84

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Solution

The fourth proportional to 7,183.28, 10,787.28 and 4,279.84 is: 6,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.28 : 10,787.28 = 4,279.84 : x
  2. Step 2: Convert to fraction form
    7,183.28/10,787.28 = 4,279.84/x
  3. Step 3: Cross multiply
    7,183.28x = 10,787.28 × 4,279.84
  4. Step 4: Simplify right side
    7,183.28x = 46,167,832.44
  5. Step 5: Solve for x
    x = 46,167,832.44/7,183.28
  6. Step 6: Final answer
    x = 6,427.12

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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.