Home / 4,311.89-6,468.66-1,389.41

Finding the Fourth Proportional to 4,311.89, 6,468.66 and 1,389.41

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Solution

The fourth proportional to 4,311.89, 6,468.66 and 1,389.41 is: 2,084.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.89 : 6,468.66 = 1,389.41 : x
  2. Step 2: Convert to fraction form
    4,311.89/6,468.66 = 1,389.41/x
  3. Step 3: Cross multiply
    4,311.89x = 6,468.66 × 1,389.41
  4. Step 4: Simplify right side
    4,311.89x = 8,987,620.89
  5. Step 5: Solve for x
    x = 8,987,620.89/4,311.89
  6. Step 6: Final answer
    x = 2,084.38

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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.