Home / 1,651.26-2,278.73-905.27

Finding the Fourth Proportional to 1,651.26, 2,278.73 and 905.27

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Solution

The fourth proportional to 1,651.26, 2,278.73 and 905.27 is: 1,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.26 : 2,278.73 = 905.27 : x
  2. Step 2: Convert to fraction form
    1,651.26/2,278.73 = 905.27/x
  3. Step 3: Cross multiply
    1,651.26x = 2,278.73 × 905.27
  4. Step 4: Simplify right side
    1,651.26x = 2,062,849.99
  5. Step 5: Solve for x
    x = 2,062,849.99/1,651.26
  6. Step 6: Final answer
    x = 1,249.26

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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.