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Finding the Fourth Proportional to 3,480.43, 5,219.62 and 1,014.47

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Solution

The fourth proportional to 3,480.43, 5,219.62 and 1,014.47 is: 1,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.43 : 5,219.62 = 1,014.47 : x
  2. Step 2: Convert to fraction form
    3,480.43/5,219.62 = 1,014.47/x
  3. Step 3: Cross multiply
    3,480.43x = 5,219.62 × 1,014.47
  4. Step 4: Simplify right side
    3,480.43x = 5,295,168.20
  5. Step 5: Solve for x
    x = 5,295,168.20/3,480.43
  6. Step 6: Final answer
    x = 1,521.41

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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.