Home / 4,311.32-6,467.40-1,389.08

Finding the Fourth Proportional to 4,311.32, 6,467.40 and 1,389.08

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Solution

The fourth proportional to 4,311.32, 6,467.40 and 1,389.08 is: 2,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.32 : 6,467.40 = 1,389.08 : x
  2. Step 2: Convert to fraction form
    4,311.32/6,467.40 = 1,389.08/x
  3. Step 3: Cross multiply
    4,311.32x = 6,467.40 × 1,389.08
  4. Step 4: Simplify right side
    4,311.32x = 8,983,735.99
  5. Step 5: Solve for x
    x = 8,983,735.99/4,311.32
  6. Step 6: Final answer
    x = 2,083.76

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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.