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Finding the Fourth Proportional to 3,072.66, 4,609.63 and 1,020.50

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Solution

The fourth proportional to 3,072.66, 4,609.63 and 1,020.50 is: 1,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.66 : 4,609.63 = 1,020.50 : x
  2. Step 2: Convert to fraction form
    3,072.66/4,609.63 = 1,020.50/x
  3. Step 3: Cross multiply
    3,072.66x = 4,609.63 × 1,020.50
  4. Step 4: Simplify right side
    3,072.66x = 4,704,127.42
  5. Step 5: Solve for x
    x = 4,704,127.42/3,072.66
  6. Step 6: Final answer
    x = 1,530.96

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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.