Home / 1,684.27-2,324.32-938.29

Finding the Fourth Proportional to 1,684.27, 2,324.32 and 938.29

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Solution

The fourth proportional to 1,684.27, 2,324.32 and 938.29 is: 1,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.27 : 2,324.32 = 938.29 : x
  2. Step 2: Convert to fraction form
    1,684.27/2,324.32 = 938.29/x
  3. Step 3: Cross multiply
    1,684.27x = 2,324.32 × 938.29
  4. Step 4: Simplify right side
    1,684.27x = 2,180,886.21
  5. Step 5: Solve for x
    x = 2,180,886.21/1,684.27
  6. Step 6: Final answer
    x = 1,294.86

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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.