Home / 3,578.45-4,938.32-2,161.94

Finding the Fourth Proportional to 3,578.45, 4,938.32 and 2,161.94

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Solution

The fourth proportional to 3,578.45, 4,938.32 and 2,161.94 is: 2,983.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.45 : 4,938.32 = 2,161.94 : x
  2. Step 2: Convert to fraction form
    3,578.45/4,938.32 = 2,161.94/x
  3. Step 3: Cross multiply
    3,578.45x = 4,938.32 × 2,161.94
  4. Step 4: Simplify right side
    3,578.45x = 10,676,353.08
  5. Step 5: Solve for x
    x = 10,676,353.08/3,578.45
  6. Step 6: Final answer
    x = 2,983.51

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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.