Home / 3,754.79-5,181.80-2,161.67

Finding the Fourth Proportional to 3,754.79, 5,181.80 and 2,161.67

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Solution

The fourth proportional to 3,754.79, 5,181.80 and 2,161.67 is: 2,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.79 : 5,181.80 = 2,161.67 : x
  2. Step 2: Convert to fraction form
    3,754.79/5,181.80 = 2,161.67/x
  3. Step 3: Cross multiply
    3,754.79x = 5,181.80 × 2,161.67
  4. Step 4: Simplify right side
    3,754.79x = 11,201,351.86
  5. Step 5: Solve for x
    x = 11,201,351.86/3,754.79
  6. Step 6: Final answer
    x = 2,983.22

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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.