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Finding the Fourth Proportional to 3,072.70, 4,609.11 and 1,614.70

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Solution

The fourth proportional to 3,072.70, 4,609.11 and 1,614.70 is: 2,422.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.70 : 4,609.11 = 1,614.70 : x
  2. Step 2: Convert to fraction form
    3,072.70/4,609.11 = 1,614.70/x
  3. Step 3: Cross multiply
    3,072.70x = 4,609.11 × 1,614.70
  4. Step 4: Simplify right side
    3,072.70x = 7,442,329.92
  5. Step 5: Solve for x
    x = 7,442,329.92/3,072.70
  6. Step 6: Final answer
    x = 2,422.08

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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.