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Finding the Fourth Proportional to 1,671.48, 2,508.30 and 850.68

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Solution

The fourth proportional to 1,671.48, 2,508.30 and 850.68 is: 1,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.48 : 2,508.30 = 850.68 : x
  2. Step 2: Convert to fraction form
    1,671.48/2,508.30 = 850.68/x
  3. Step 3: Cross multiply
    1,671.48x = 2,508.30 × 850.68
  4. Step 4: Simplify right side
    1,671.48x = 2,133,760.64
  5. Step 5: Solve for x
    x = 2,133,760.64/1,671.48
  6. Step 6: Final answer
    x = 1,276.57

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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.