Home / 1,684.10-2,324.03-938.13

Finding the Fourth Proportional to 1,684.10, 2,324.03 and 938.13

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Solution

The fourth proportional to 1,684.10, 2,324.03 and 938.13 is: 1,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.10 : 2,324.03 = 938.13 : x
  2. Step 2: Convert to fraction form
    1,684.10/2,324.03 = 938.13/x
  3. Step 3: Cross multiply
    1,684.10x = 2,324.03 × 938.13
  4. Step 4: Simplify right side
    1,684.10x = 2,180,237.57
  5. Step 5: Solve for x
    x = 2,180,237.57/1,684.10
  6. Step 6: Final answer
    x = 1,294.60

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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.