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Finding the Fourth Proportional to 6,602.31, 9,103.73 and 4,209.09

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Solution

The fourth proportional to 6,602.31, 9,103.73 and 4,209.09 is: 5,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.31 : 9,103.73 = 4,209.09 : x
  2. Step 2: Convert to fraction form
    6,602.31/9,103.73 = 4,209.09/x
  3. Step 3: Cross multiply
    6,602.31x = 9,103.73 × 4,209.09
  4. Step 4: Simplify right side
    6,602.31x = 38,318,397.86
  5. Step 5: Solve for x
    x = 38,318,397.86/6,602.31
  6. Step 6: Final answer
    x = 5,803.79

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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.