Home / 3,890.35-5,362.23-2,754.53

Finding the Fourth Proportional to 3,890.35, 5,362.23 and 2,754.53

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Solution

The fourth proportional to 3,890.35, 5,362.23 and 2,754.53 is: 3,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.35 : 5,362.23 = 2,754.53 : x
  2. Step 2: Convert to fraction form
    3,890.35/5,362.23 = 2,754.53/x
  3. Step 3: Cross multiply
    3,890.35x = 5,362.23 × 2,754.53
  4. Step 4: Simplify right side
    3,890.35x = 14,770,423.40
  5. Step 5: Solve for x
    x = 14,770,423.40/3,890.35
  6. Step 6: Final answer
    x = 3,796.68

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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.