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Finding the Fourth Proportional to 3,167.90, 4,747.70 and 1,703.90

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Solution

The fourth proportional to 3,167.90, 4,747.70 and 1,703.90 is: 2,553.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.90 : 4,747.70 = 1,703.90 : x
  2. Step 2: Convert to fraction form
    3,167.90/4,747.70 = 1,703.90/x
  3. Step 3: Cross multiply
    3,167.90x = 4,747.70 × 1,703.90
  4. Step 4: Simplify right side
    3,167.90x = 8,089,606.03
  5. Step 5: Solve for x
    x = 8,089,606.03/3,167.90
  6. Step 6: Final answer
    x = 2,553.62

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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.