Home / 5,396.91-8,080.43-2,758.74

Finding the Fourth Proportional to 5,396.91, 8,080.43 and 2,758.74

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Solution

The fourth proportional to 5,396.91, 8,080.43 and 2,758.74 is: 4,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.91 : 8,080.43 = 2,758.74 : x
  2. Step 2: Convert to fraction form
    5,396.91/8,080.43 = 2,758.74/x
  3. Step 3: Cross multiply
    5,396.91x = 8,080.43 × 2,758.74
  4. Step 4: Simplify right side
    5,396.91x = 22,291,806.82
  5. Step 5: Solve for x
    x = 22,291,806.82/5,396.91
  6. Step 6: Final answer
    x = 4,130.47

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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.