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Finding the Fourth Proportional to 1,891.61, 2,837.64 and 504.99

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Solution

The fourth proportional to 1,891.61, 2,837.64 and 504.99 is: 757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.61 : 2,837.64 = 504.99 : x
  2. Step 2: Convert to fraction form
    1,891.61/2,837.64 = 504.99/x
  3. Step 3: Cross multiply
    1,891.61x = 2,837.64 × 504.99
  4. Step 4: Simplify right side
    1,891.61x = 1,432,977.30
  5. Step 5: Solve for x
    x = 1,432,977.30/1,891.61
  6. Step 6: Final answer
    x = 757.54

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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.