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Finding the Fourth Proportional to 7,990.26, 11,025 and 4,452.81

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Solution

The fourth proportional to 7,990.26, 11,025 and 4,452.81 is: 6,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.26 : 11,025 = 4,452.81 : x
  2. Step 2: Convert to fraction form
    7,990.26/11,025 = 4,452.81/x
  3. Step 3: Cross multiply
    7,990.26x = 11,025 × 4,452.81
  4. Step 4: Simplify right side
    7,990.26x = 49,092,230.25
  5. Step 5: Solve for x
    x = 49,092,230.25/7,990.26
  6. Step 6: Final answer
    x = 6,144.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.