Home / 4,311.32-6,467.56-1,388.92

Finding the Fourth Proportional to 4,311.32, 6,467.56 and 1,388.92

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Solution

The fourth proportional to 4,311.32, 6,467.56 and 1,388.92 is: 2,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.32 : 6,467.56 = 1,388.92 : x
  2. Step 2: Convert to fraction form
    4,311.32/6,467.56 = 1,388.92/x
  3. Step 3: Cross multiply
    4,311.32x = 6,467.56 × 1,388.92
  4. Step 4: Simplify right side
    4,311.32x = 8,982,923.44
  5. Step 5: Solve for x
    x = 8,982,923.44/4,311.32
  6. Step 6: Final answer
    x = 2,083.57

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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.