Home / 3,945-5,914.52-2,385.56

Finding the Fourth Proportional to 3,945, 5,914.52 and 2,385.56

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Solution

The fourth proportional to 3,945, 5,914.52 and 2,385.56 is: 3,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945 : 5,914.52 = 2,385.56 : x
  2. Step 2: Convert to fraction form
    3,945/5,914.52 = 2,385.56/x
  3. Step 3: Cross multiply
    3,945x = 5,914.52 × 2,385.56
  4. Step 4: Simplify right side
    3,945x = 14,109,442.33
  5. Step 5: Solve for x
    x = 14,109,442.33/3,945
  6. Step 6: Final answer
    x = 3,576.54

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1.5x scale

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.