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Finding the Fourth Proportional to 6,284.40, 9,423.90 and 3,163.20

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Solution

The fourth proportional to 6,284.40, 9,423.90 and 3,163.20 is: 4,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,284.40 : 9,423.90 = 3,163.20 : x
  2. Step 2: Convert to fraction form
    6,284.40/9,423.90 = 3,163.20/x
  3. Step 3: Cross multiply
    6,284.40x = 9,423.90 × 3,163.20
  4. Step 4: Simplify right side
    6,284.40x = 29,809,680.48
  5. Step 5: Solve for x
    x = 29,809,680.48/6,284.40
  6. Step 6: Final answer
    x = 4,743.44

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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.