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Finding the Fourth Proportional to 1,965.89, 2,948.54 and 504.99

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Solution

The fourth proportional to 1,965.89, 2,948.54 and 504.99 is: 757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.89 : 2,948.54 = 504.99 : x
  2. Step 2: Convert to fraction form
    1,965.89/2,948.54 = 504.99/x
  3. Step 3: Cross multiply
    1,965.89x = 2,948.54 × 504.99
  4. Step 4: Simplify right side
    1,965.89x = 1,488,980.69
  5. Step 5: Solve for x
    x = 1,488,980.69/1,965.89
  6. Step 6: Final answer
    x = 757.41

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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.