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Finding the Fourth Proportional to 2,002.48, 3,001.64 and 769.58

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Solution

The fourth proportional to 2,002.48, 3,001.64 and 769.58 is: 1,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.48 : 3,001.64 = 769.58 : x
  2. Step 2: Convert to fraction form
    2,002.48/3,001.64 = 769.58/x
  3. Step 3: Cross multiply
    2,002.48x = 3,001.64 × 769.58
  4. Step 4: Simplify right side
    2,002.48x = 2,310,002.11
  5. Step 5: Solve for x
    x = 2,310,002.11/2,002.48
  6. Step 6: Final answer
    x = 1,153.57

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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.