Home / 2,172.79-3,003.36-2,000.56

Finding the Fourth Proportional to 2,172.79, 3,003.36 and 2,000.56

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Solution

The fourth proportional to 2,172.79, 3,003.36 and 2,000.56 is: 2,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.79 : 3,003.36 = 2,000.56 : x
  2. Step 2: Convert to fraction form
    2,172.79/3,003.36 = 2,000.56/x
  3. Step 3: Cross multiply
    2,172.79x = 3,003.36 × 2,000.56
  4. Step 4: Simplify right side
    2,172.79x = 6,008,401.88
  5. Step 5: Solve for x
    x = 6,008,401.88/2,172.79
  6. Step 6: Final answer
    x = 2,765.29

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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.