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Finding the Fourth Proportional to 1,757.09, 2,636.55 and 1,028.09

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Solution

The fourth proportional to 1,757.09, 2,636.55 and 1,028.09 is: 1,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.09 : 2,636.55 = 1,028.09 : x
  2. Step 2: Convert to fraction form
    1,757.09/2,636.55 = 1,028.09/x
  3. Step 3: Cross multiply
    1,757.09x = 2,636.55 × 1,028.09
  4. Step 4: Simplify right side
    1,757.09x = 2,710,617.28
  5. Step 5: Solve for x
    x = 2,710,617.28/1,757.09
  6. Step 6: Final answer
    x = 1,542.67

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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.