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Finding the Fourth Proportional to 5,012.72, 7,505.12 and 3,259.68

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Solution

The fourth proportional to 5,012.72, 7,505.12 and 3,259.68 is: 4,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.72 : 7,505.12 = 3,259.68 : x
  2. Step 2: Convert to fraction form
    5,012.72/7,505.12 = 3,259.68/x
  3. Step 3: Cross multiply
    5,012.72x = 7,505.12 × 3,259.68
  4. Step 4: Simplify right side
    5,012.72x = 24,464,289.56
  5. Step 5: Solve for x
    x = 24,464,289.56/5,012.72
  6. Step 6: Final answer
    x = 4,880.44

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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.