Home / 4,945.29-7,418.75-2,171.85

Finding the Fourth Proportional to 4,945.29, 7,418.75 and 2,171.85

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Solution

The fourth proportional to 4,945.29, 7,418.75 and 2,171.85 is: 3,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.29 : 7,418.75 = 2,171.85 : x
  2. Step 2: Convert to fraction form
    4,945.29/7,418.75 = 2,171.85/x
  3. Step 3: Cross multiply
    4,945.29x = 7,418.75 × 2,171.85
  4. Step 4: Simplify right side
    4,945.29x = 16,112,401.33
  5. Step 5: Solve for x
    x = 16,112,401.33/4,945.29
  6. Step 6: Final answer
    x = 3,258.13

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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.