Home / 4,311.94-6,467.30-1,389.86

Finding the Fourth Proportional to 4,311.94, 6,467.30 and 1,389.86

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Solution

The fourth proportional to 4,311.94, 6,467.30 and 1,389.86 is: 2,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.94 : 6,467.30 = 1,389.86 : x
  2. Step 2: Convert to fraction form
    4,311.94/6,467.30 = 1,389.86/x
  3. Step 3: Cross multiply
    4,311.94x = 6,467.30 × 1,389.86
  4. Step 4: Simplify right side
    4,311.94x = 8,988,641.58
  5. Step 5: Solve for x
    x = 8,988,641.58/4,311.94
  6. Step 6: Final answer
    x = 2,084.59

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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.