Home / 4,172.45-5,754.71-2,680.49

Finding the Fourth Proportional to 4,172.45, 5,754.71 and 2,680.49

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Solution

The fourth proportional to 4,172.45, 5,754.71 and 2,680.49 is: 3,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.45 : 5,754.71 = 2,680.49 : x
  2. Step 2: Convert to fraction form
    4,172.45/5,754.71 = 2,680.49/x
  3. Step 3: Cross multiply
    4,172.45x = 5,754.71 × 2,680.49
  4. Step 4: Simplify right side
    4,172.45x = 15,425,463.70
  5. Step 5: Solve for x
    x = 15,425,463.70/4,172.45
  6. Step 6: Final answer
    x = 3,696.98

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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.