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Finding the Fourth Proportional to 5,000.99, 7,500.87 and 2,078.91

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Solution

The fourth proportional to 5,000.99, 7,500.87 and 2,078.91 is: 3,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.99 : 7,500.87 = 2,078.91 : x
  2. Step 2: Convert to fraction form
    5,000.99/7,500.87 = 2,078.91/x
  3. Step 3: Cross multiply
    5,000.99x = 7,500.87 × 2,078.91
  4. Step 4: Simplify right side
    5,000.99x = 15,593,633.65
  5. Step 5: Solve for x
    x = 15,593,633.65/5,000.99
  6. Step 6: Final answer
    x = 3,118.11

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1.5x scale

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.