Home / 3,433.84-4,736.96-2,172.78

Finding the Fourth Proportional to 3,433.84, 4,736.96 and 2,172.78

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Solution

The fourth proportional to 3,433.84, 4,736.96 and 2,172.78 is: 2,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.84 : 4,736.96 = 2,172.78 : x
  2. Step 2: Convert to fraction form
    3,433.84/4,736.96 = 2,172.78/x
  3. Step 3: Cross multiply
    3,433.84x = 4,736.96 × 2,172.78
  4. Step 4: Simplify right side
    3,433.84x = 10,292,371.95
  5. Step 5: Solve for x
    x = 10,292,371.95/3,433.84
  6. Step 6: Final answer
    x = 2,997.34

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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.