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Finding the Fourth Proportional to 4,902.87, 7,351.50 and 1,615.08

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Solution

The fourth proportional to 4,902.87, 7,351.50 and 1,615.08 is: 2,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.87 : 7,351.50 = 1,615.08 : x
  2. Step 2: Convert to fraction form
    4,902.87/7,351.50 = 1,615.08/x
  3. Step 3: Cross multiply
    4,902.87x = 7,351.50 × 1,615.08
  4. Step 4: Simplify right side
    4,902.87x = 11,873,260.62
  5. Step 5: Solve for x
    x = 11,873,260.62/4,902.87
  6. Step 6: Final answer
    x = 2,421.70

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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.