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Finding the Fourth Proportional to 6,399.34, 8,830.50 and 3,566.44

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Solution

The fourth proportional to 6,399.34, 8,830.50 and 3,566.44 is: 4,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.34 : 8,830.50 = 3,566.44 : x
  2. Step 2: Convert to fraction form
    6,399.34/8,830.50 = 3,566.44/x
  3. Step 3: Cross multiply
    6,399.34x = 8,830.50 × 3,566.44
  4. Step 4: Simplify right side
    6,399.34x = 31,493,448.42
  5. Step 5: Solve for x
    x = 31,493,448.42/6,399.34
  6. Step 6: Final answer
    x = 4,921.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.