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Finding the Fourth Proportional to 1,750.72, 2,626.48 and 518.14

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Solution

The fourth proportional to 1,750.72, 2,626.48 and 518.14 is: 777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.72 : 2,626.48 = 518.14 : x
  2. Step 2: Convert to fraction form
    1,750.72/2,626.48 = 518.14/x
  3. Step 3: Cross multiply
    1,750.72x = 2,626.48 × 518.14
  4. Step 4: Simplify right side
    1,750.72x = 1,360,884.35
  5. Step 5: Solve for x
    x = 1,360,884.35/1,750.72
  6. Step 6: Final answer
    x = 777.33

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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.