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Finding the Fourth Proportional to 5,704.71, 7,873.50 and 3,690.60

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Solution

The fourth proportional to 5,704.71, 7,873.50 and 3,690.60 is: 5,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.71 : 7,873.50 = 3,690.60 : x
  2. Step 2: Convert to fraction form
    5,704.71/7,873.50 = 3,690.60/x
  3. Step 3: Cross multiply
    5,704.71x = 7,873.50 × 3,690.60
  4. Step 4: Simplify right side
    5,704.71x = 29,057,939.10
  5. Step 5: Solve for x
    x = 29,057,939.10/5,704.71
  6. Step 6: Final answer
    x = 5,093.68

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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.