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Finding the Fourth Proportional to 1,893.87, 2,612.25 and 1,264.14

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Solution

The fourth proportional to 1,893.87, 2,612.25 and 1,264.14 is: 1,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.87 : 2,612.25 = 1,264.14 : x
  2. Step 2: Convert to fraction form
    1,893.87/2,612.25 = 1,264.14/x
  3. Step 3: Cross multiply
    1,893.87x = 2,612.25 × 1,264.14
  4. Step 4: Simplify right side
    1,893.87x = 3,302,249.72
  5. Step 5: Solve for x
    x = 3,302,249.72/1,893.87
  6. Step 6: Final answer
    x = 1,743.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.