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Finding the Fourth Proportional to 6,446.88, 9,667.44 and 2,985.12

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Solution

The fourth proportional to 6,446.88, 9,667.44 and 2,985.12 is: 4,476.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446.88 : 9,667.44 = 2,985.12 : x
  2. Step 2: Convert to fraction form
    6,446.88/9,667.44 = 2,985.12/x
  3. Step 3: Cross multiply
    6,446.88x = 9,667.44 × 2,985.12
  4. Step 4: Simplify right side
    6,446.88x = 28,858,468.49
  5. Step 5: Solve for x
    x = 28,858,468.49/6,446.88
  6. Step 6: Final answer
    x = 4,476.35

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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.