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Finding the Fourth Proportional to 7,103.30, 10,654.95 and 2,172.95

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Solution

The fourth proportional to 7,103.30, 10,654.95 and 2,172.95 is: 3,259.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.30 : 10,654.95 = 2,172.95 : x
  2. Step 2: Convert to fraction form
    7,103.30/10,654.95 = 2,172.95/x
  3. Step 3: Cross multiply
    7,103.30x = 10,654.95 × 2,172.95
  4. Step 4: Simplify right side
    7,103.30x = 23,152,673.60
  5. Step 5: Solve for x
    x = 23,152,673.60/7,103.30
  6. Step 6: Final answer
    x = 3,259.43

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Similar ratio
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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.