Home / 4,311.43-6,468.05-1,389.66

Finding the Fourth Proportional to 4,311.43, 6,468.05 and 1,389.66

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Solution

The fourth proportional to 4,311.43, 6,468.05 and 1,389.66 is: 2,084.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.43 : 6,468.05 = 1,389.66 : x
  2. Step 2: Convert to fraction form
    4,311.43/6,468.05 = 1,389.66/x
  3. Step 3: Cross multiply
    4,311.43x = 6,468.05 × 1,389.66
  4. Step 4: Simplify right side
    4,311.43x = 8,988,369.58
  5. Step 5: Solve for x
    x = 8,988,369.58/4,311.43
  6. Step 6: Final answer
    x = 2,084.78

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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.