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Finding the Fourth Proportional to 1,672.74, 2,509.14 and 633.23

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Solution

The fourth proportional to 1,672.74, 2,509.14 and 633.23 is: 949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.74 : 2,509.14 = 633.23 : x
  2. Step 2: Convert to fraction form
    1,672.74/2,509.14 = 633.23/x
  3. Step 3: Cross multiply
    1,672.74x = 2,509.14 × 633.23
  4. Step 4: Simplify right side
    1,672.74x = 1,588,862.72
  5. Step 5: Solve for x
    x = 1,588,862.72/1,672.74
  6. Step 6: Final answer
    x = 949.86

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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.