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Finding the Fourth Proportional to 1,898.97, 2,850.47 and 1,680.98

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Solution

The fourth proportional to 1,898.97, 2,850.47 and 1,680.98 is: 2,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.97 : 2,850.47 = 1,680.98 : x
  2. Step 2: Convert to fraction form
    1,898.97/2,850.47 = 1,680.98/x
  3. Step 3: Cross multiply
    1,898.97x = 2,850.47 × 1,680.98
  4. Step 4: Simplify right side
    1,898.97x = 4,791,583.06
  5. Step 5: Solve for x
    x = 4,791,583.06/1,898.97
  6. Step 6: Final answer
    x = 2,523.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.