Home / 5,387.99-8,074.07-2,715.92

Finding the Fourth Proportional to 5,387.99, 8,074.07 and 2,715.92

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Solution

The fourth proportional to 5,387.99, 8,074.07 and 2,715.92 is: 4,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.99 : 8,074.07 = 2,715.92 : x
  2. Step 2: Convert to fraction form
    5,387.99/8,074.07 = 2,715.92/x
  3. Step 3: Cross multiply
    5,387.99x = 8,074.07 × 2,715.92
  4. Step 4: Simplify right side
    5,387.99x = 21,928,474.24
  5. Step 5: Solve for x
    x = 21,928,474.24/5,387.99
  6. Step 6: Final answer
    x = 4,069.88

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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.