Home / 2,113.73-3,170.60-943.43

Finding the Fourth Proportional to 2,113.73, 3,170.60 and 943.43

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Solution

The fourth proportional to 2,113.73, 3,170.60 and 943.43 is: 1,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.73 : 3,170.60 = 943.43 : x
  2. Step 2: Convert to fraction form
    2,113.73/3,170.60 = 943.43/x
  3. Step 3: Cross multiply
    2,113.73x = 3,170.60 × 943.43
  4. Step 4: Simplify right side
    2,113.73x = 2,991,239.16
  5. Step 5: Solve for x
    x = 2,991,239.16/2,113.73
  6. Step 6: Final answer
    x = 1,415.15

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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.