Home / 1,682.27-2,321.10-936.06

Finding the Fourth Proportional to 1,682.27, 2,321.10 and 936.06

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Solution

The fourth proportional to 1,682.27, 2,321.10 and 936.06 is: 1,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.27 : 2,321.10 = 936.06 : x
  2. Step 2: Convert to fraction form
    1,682.27/2,321.10 = 936.06/x
  3. Step 3: Cross multiply
    1,682.27x = 2,321.10 × 936.06
  4. Step 4: Simplify right side
    1,682.27x = 2,172,688.87
  5. Step 5: Solve for x
    x = 2,172,688.87/1,682.27
  6. Step 6: Final answer
    x = 1,291.52

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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.