Home / 5,427.59-7,485.97-3,940.43

Finding the Fourth Proportional to 5,427.59, 7,485.97 and 3,940.43

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Solution

The fourth proportional to 5,427.59, 7,485.97 and 3,940.43 is: 5,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.59 : 7,485.97 = 3,940.43 : x
  2. Step 2: Convert to fraction form
    5,427.59/7,485.97 = 3,940.43/x
  3. Step 3: Cross multiply
    5,427.59x = 7,485.97 × 3,940.43
  4. Step 4: Simplify right side
    5,427.59x = 29,497,940.77
  5. Step 5: Solve for x
    x = 29,497,940.77/5,427.59
  6. Step 6: Final answer
    x = 5,434.81

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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.