Home / 5,389.32-8,068.96-2,751.15

Finding the Fourth Proportional to 5,389.32, 8,068.96 and 2,751.15

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Solution

The fourth proportional to 5,389.32, 8,068.96 and 2,751.15 is: 4,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.32 : 8,068.96 = 2,751.15 : x
  2. Step 2: Convert to fraction form
    5,389.32/8,068.96 = 2,751.15/x
  3. Step 3: Cross multiply
    5,389.32x = 8,068.96 × 2,751.15
  4. Step 4: Simplify right side
    5,389.32x = 22,198,919.30
  5. Step 5: Solve for x
    x = 22,198,919.30/5,389.32
  6. Step 6: Final answer
    x = 4,119.06

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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.