Home / 3,940.03-5,437.23-2,171.63

Finding the Fourth Proportional to 3,940.03, 5,437.23 and 2,171.63

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Solution

The fourth proportional to 3,940.03, 5,437.23 and 2,171.63 is: 2,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.03 : 5,437.23 = 2,171.63 : x
  2. Step 2: Convert to fraction form
    3,940.03/5,437.23 = 2,171.63/x
  3. Step 3: Cross multiply
    3,940.03x = 5,437.23 × 2,171.63
  4. Step 4: Simplify right side
    3,940.03x = 11,807,640.93
  5. Step 5: Solve for x
    x = 11,807,640.93/3,940.03
  6. Step 6: Final answer
    x = 2,996.84

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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.