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Finding the Fourth Proportional to 4,771.50, 7,157.61 and 1,693.50

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Solution

The fourth proportional to 4,771.50, 7,157.61 and 1,693.50 is: 2,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.50 : 7,157.61 = 1,693.50 : x
  2. Step 2: Convert to fraction form
    4,771.50/7,157.61 = 1,693.50/x
  3. Step 3: Cross multiply
    4,771.50x = 7,157.61 × 1,693.50
  4. Step 4: Simplify right side
    4,771.50x = 12,121,412.54
  5. Step 5: Solve for x
    x = 12,121,412.54/4,771.50
  6. Step 6: Final answer
    x = 2,540.38

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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.