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Finding the Fourth Proportional to 1,674.77, 2,512.38 and 635.15

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Solution

The fourth proportional to 1,674.77, 2,512.38 and 635.15 is: 952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.77 : 2,512.38 = 635.15 : x
  2. Step 2: Convert to fraction form
    1,674.77/2,512.38 = 635.15/x
  3. Step 3: Cross multiply
    1,674.77x = 2,512.38 × 635.15
  4. Step 4: Simplify right side
    1,674.77x = 1,595,725.60
  5. Step 5: Solve for x
    x = 1,595,725.60/1,674.77
  6. Step 6: Final answer
    x = 952.81

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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.