Home / 5,320.91-7,986.29-2,690.27

Finding the Fourth Proportional to 5,320.91, 7,986.29 and 2,690.27

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Solution

The fourth proportional to 5,320.91, 7,986.29 and 2,690.27 is: 4,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.91 : 7,986.29 = 2,690.27 : x
  2. Step 2: Convert to fraction form
    5,320.91/7,986.29 = 2,690.27/x
  3. Step 3: Cross multiply
    5,320.91x = 7,986.29 × 2,690.27
  4. Step 4: Simplify right side
    5,320.91x = 21,485,313.02
  5. Step 5: Solve for x
    x = 21,485,313.02/5,320.91
  6. Step 6: Final answer
    x = 4,037.90

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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.