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Finding the Fourth Proportional to 6,486.96, 8,951.70 and 3,654.42

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Solution

The fourth proportional to 6,486.96, 8,951.70 and 3,654.42 is: 5,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.96 : 8,951.70 = 3,654.42 : x
  2. Step 2: Convert to fraction form
    6,486.96/8,951.70 = 3,654.42/x
  3. Step 3: Cross multiply
    6,486.96x = 8,951.70 × 3,654.42
  4. Step 4: Simplify right side
    6,486.96x = 32,713,271.51
  5. Step 5: Solve for x
    x = 32,713,271.51/6,486.96
  6. Step 6: Final answer
    x = 5,042.93

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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.