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Finding the Fourth Proportional to 1,744.71, 2,616.53 and 633.98

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Solution

The fourth proportional to 1,744.71, 2,616.53 and 633.98 is: 950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.71 : 2,616.53 = 633.98 : x
  2. Step 2: Convert to fraction form
    1,744.71/2,616.53 = 633.98/x
  3. Step 3: Cross multiply
    1,744.71x = 2,616.53 × 633.98
  4. Step 4: Simplify right side
    1,744.71x = 1,658,827.69
  5. Step 5: Solve for x
    x = 1,658,827.69/1,744.71
  6. Step 6: Final answer
    x = 950.78

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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.