Home / 3,577.81-4,937.88-2,161.57

Finding the Fourth Proportional to 3,577.81, 4,937.88 and 2,161.57

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Solution

The fourth proportional to 3,577.81, 4,937.88 and 2,161.57 is: 2,983.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.81 : 4,937.88 = 2,161.57 : x
  2. Step 2: Convert to fraction form
    3,577.81/4,937.88 = 2,161.57/x
  3. Step 3: Cross multiply
    3,577.81x = 4,937.88 × 2,161.57
  4. Step 4: Simplify right side
    3,577.81x = 10,673,573.27
  5. Step 5: Solve for x
    x = 10,673,573.27/3,577.81
  6. Step 6: Final answer
    x = 2,983.27

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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.