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Finding the Fourth Proportional to 2,039.43, 3,059.08 and 652.75

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Solution

The fourth proportional to 2,039.43, 3,059.08 and 652.75 is: 979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.43 : 3,059.08 = 652.75 : x
  2. Step 2: Convert to fraction form
    2,039.43/3,059.08 = 652.75/x
  3. Step 3: Cross multiply
    2,039.43x = 3,059.08 × 652.75
  4. Step 4: Simplify right side
    2,039.43x = 1,996,814.47
  5. Step 5: Solve for x
    x = 1,996,814.47/2,039.43
  6. Step 6: Final answer
    x = 979.10

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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.