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Finding the Fourth Proportional to 4,611.44, 6,913.32 and 3,321.20

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Solution

The fourth proportional to 4,611.44, 6,913.32 and 3,321.20 is: 4,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.44 : 6,913.32 = 3,321.20 : x
  2. Step 2: Convert to fraction form
    4,611.44/6,913.32 = 3,321.20/x
  3. Step 3: Cross multiply
    4,611.44x = 6,913.32 × 3,321.20
  4. Step 4: Simplify right side
    4,611.44x = 22,960,518.38
  5. Step 5: Solve for x
    x = 22,960,518.38/4,611.44
  6. Step 6: Final answer
    x = 4,979.03

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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.