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Finding the Fourth Proportional to 6,654.22, 9,985.95 and 4,308.42

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Solution

The fourth proportional to 6,654.22, 9,985.95 and 4,308.42 is: 6,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654.22 : 9,985.95 = 4,308.42 : x
  2. Step 2: Convert to fraction form
    6,654.22/9,985.95 = 4,308.42/x
  3. Step 3: Cross multiply
    6,654.22x = 9,985.95 × 4,308.42
  4. Step 4: Simplify right side
    6,654.22x = 43,023,704.15
  5. Step 5: Solve for x
    x = 43,023,704.15/6,654.22
  6. Step 6: Final answer
    x = 6,465.63

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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.