Home / 3,577.90-4,938.54-2,161.37

Finding the Fourth Proportional to 3,577.90, 4,938.54 and 2,161.37

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Solution

The fourth proportional to 3,577.90, 4,938.54 and 2,161.37 is: 2,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.90 : 4,938.54 = 2,161.37 : x
  2. Step 2: Convert to fraction form
    3,577.90/4,938.54 = 2,161.37/x
  3. Step 3: Cross multiply
    3,577.90x = 4,938.54 × 2,161.37
  4. Step 4: Simplify right side
    3,577.90x = 10,673,976.70
  5. Step 5: Solve for x
    x = 10,673,976.70/3,577.90
  6. Step 6: Final answer
    x = 2,983.31

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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.