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Finding the Fourth Proportional to 1,787.44, 2,682.16 and 965.68

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Solution

The fourth proportional to 1,787.44, 2,682.16 and 965.68 is: 1,449.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.44 : 2,682.16 = 965.68 : x
  2. Step 2: Convert to fraction form
    1,787.44/2,682.16 = 965.68/x
  3. Step 3: Cross multiply
    1,787.44x = 2,682.16 × 965.68
  4. Step 4: Simplify right side
    1,787.44x = 2,590,108.27
  5. Step 5: Solve for x
    x = 2,590,108.27/1,787.44
  6. Step 6: Final answer
    x = 1,449.06

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1.5x scale

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.