Home / 3,578.85-4,938.98-2,007.05

Finding the Fourth Proportional to 3,578.85, 4,938.98 and 2,007.05

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Solution

The fourth proportional to 3,578.85, 4,938.98 and 2,007.05 is: 2,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.85 : 4,938.98 = 2,007.05 : x
  2. Step 2: Convert to fraction form
    3,578.85/4,938.98 = 2,007.05/x
  3. Step 3: Cross multiply
    3,578.85x = 4,938.98 × 2,007.05
  4. Step 4: Simplify right side
    3,578.85x = 9,912,745.08
  5. Step 5: Solve for x
    x = 9,912,745.08/3,578.85
  6. Step 6: Final answer
    x = 2,769.81

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1.5x scale

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.