Home / 4,311.64-6,468.41-1,389.97

Finding the Fourth Proportional to 4,311.64, 6,468.41 and 1,389.97

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Solution

The fourth proportional to 4,311.64, 6,468.41 and 1,389.97 is: 2,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.64 : 6,468.41 = 1,389.97 : x
  2. Step 2: Convert to fraction form
    4,311.64/6,468.41 = 1,389.97/x
  3. Step 3: Cross multiply
    4,311.64x = 6,468.41 × 1,389.97
  4. Step 4: Simplify right side
    4,311.64x = 8,990,895.85
  5. Step 5: Solve for x
    x = 8,990,895.85/4,311.64
  6. Step 6: Final answer
    x = 2,085.26

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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.