Home / 2,093.20-3,140.60-938.12

Finding the Fourth Proportional to 2,093.20, 3,140.60 and 938.12

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Solution

The fourth proportional to 2,093.20, 3,140.60 and 938.12 is: 1,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.20 : 3,140.60 = 938.12 : x
  2. Step 2: Convert to fraction form
    2,093.20/3,140.60 = 938.12/x
  3. Step 3: Cross multiply
    2,093.20x = 3,140.60 × 938.12
  4. Step 4: Simplify right side
    2,093.20x = 2,946,259.67
  5. Step 5: Solve for x
    x = 2,946,259.67/2,093.20
  6. Step 6: Final answer
    x = 1,407.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.