Home / 1,682.27-2,321.35-936.17

Finding the Fourth Proportional to 1,682.27, 2,321.35 and 936.17

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Solution

The fourth proportional to 1,682.27, 2,321.35 and 936.17 is: 1,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.27 : 2,321.35 = 936.17 : x
  2. Step 2: Convert to fraction form
    1,682.27/2,321.35 = 936.17/x
  3. Step 3: Cross multiply
    1,682.27x = 2,321.35 × 936.17
  4. Step 4: Simplify right side
    1,682.27x = 2,173,178.23
  5. Step 5: Solve for x
    x = 2,173,178.23/1,682.27
  6. Step 6: Final answer
    x = 1,291.81

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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.