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Finding the Fourth Proportional to 7,135.01, 10,704.60 and 3,187.20

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Solution

The fourth proportional to 7,135.01, 10,704.60 and 3,187.20 is: 4,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.01 : 10,704.60 = 3,187.20 : x
  2. Step 2: Convert to fraction form
    7,135.01/10,704.60 = 3,187.20/x
  3. Step 3: Cross multiply
    7,135.01x = 10,704.60 × 3,187.20
  4. Step 4: Simplify right side
    7,135.01x = 34,117,701.12
  5. Step 5: Solve for x
    x = 34,117,701.12/7,135.01
  6. Step 6: Final answer
    x = 4,781.73

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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.