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Finding the Fourth Proportional to 5,000.67, 7,500.87 and 2,078.19

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Solution

The fourth proportional to 5,000.67, 7,500.87 and 2,078.19 is: 3,117.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.67 : 7,500.87 = 2,078.19 : x
  2. Step 2: Convert to fraction form
    5,000.67/7,500.87 = 2,078.19/x
  3. Step 3: Cross multiply
    5,000.67x = 7,500.87 × 2,078.19
  4. Step 4: Simplify right side
    5,000.67x = 15,588,233.03
  5. Step 5: Solve for x
    x = 15,588,233.03/5,000.67
  6. Step 6: Final answer
    x = 3,117.23

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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.