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Finding the Fourth Proportional to 3,650.96, 5,479.14 and 2,007.20

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Solution

The fourth proportional to 3,650.96, 5,479.14 and 2,007.20 is: 3,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.96 : 5,479.14 = 2,007.20 : x
  2. Step 2: Convert to fraction form
    3,650.96/5,479.14 = 2,007.20/x
  3. Step 3: Cross multiply
    3,650.96x = 5,479.14 × 2,007.20
  4. Step 4: Simplify right side
    3,650.96x = 10,997,729.81
  5. Step 5: Solve for x
    x = 10,997,729.81/3,650.96
  6. Step 6: Final answer
    x = 3,012.28

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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.