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Finding the Fourth Proportional to 7,101.30, 10,654.01 and 2,940.54

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Solution

The fourth proportional to 7,101.30, 10,654.01 and 2,940.54 is: 4,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.30 : 10,654.01 = 2,940.54 : x
  2. Step 2: Convert to fraction form
    7,101.30/10,654.01 = 2,940.54/x
  3. Step 3: Cross multiply
    7,101.30x = 10,654.01 × 2,940.54
  4. Step 4: Simplify right side
    7,101.30x = 31,328,542.57
  5. Step 5: Solve for x
    x = 31,328,542.57/7,101.30
  6. Step 6: Final answer
    x = 4,411.66

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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.