Home / 3,865.81-5,334.84-2,097.43

Finding the Fourth Proportional to 3,865.81, 5,334.84 and 2,097.43

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Solution

The fourth proportional to 3,865.81, 5,334.84 and 2,097.43 is: 2,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.81 : 5,334.84 = 2,097.43 : x
  2. Step 2: Convert to fraction form
    3,865.81/5,334.84 = 2,097.43/x
  3. Step 3: Cross multiply
    3,865.81x = 5,334.84 × 2,097.43
  4. Step 4: Simplify right side
    3,865.81x = 11,189,453.46
  5. Step 5: Solve for x
    x = 11,189,453.46/3,865.81
  6. Step 6: Final answer
    x = 2,894.47

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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.