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Finding the Fourth Proportional to 2,000.63, 3,001.39 and 768.62

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Solution

The fourth proportional to 2,000.63, 3,001.39 and 768.62 is: 1,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.63 : 3,001.39 = 768.62 : x
  2. Step 2: Convert to fraction form
    2,000.63/3,001.39 = 768.62/x
  3. Step 3: Cross multiply
    2,000.63x = 3,001.39 × 768.62
  4. Step 4: Simplify right side
    2,000.63x = 2,306,928.38
  5. Step 5: Solve for x
    x = 2,306,928.38/2,000.63
  6. Step 6: Final answer
    x = 1,153.10

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1.5x scale

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.