Home / 1,166.08-1,749.28-516.80

Finding the Fourth Proportional to 1,166.08, 1,749.28 and 516.80

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Solution

The fourth proportional to 1,166.08, 1,749.28 and 516.80 is: 775.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.08 : 1,749.28 = 516.80 : x
  2. Step 2: Convert to fraction form
    1,166.08/1,749.28 = 516.80/x
  3. Step 3: Cross multiply
    1,166.08x = 1,749.28 × 516.80
  4. Step 4: Simplify right side
    1,166.08x = 904,027.90
  5. Step 5: Solve for x
    x = 904,027.90/1,166.08
  6. Step 6: Final answer
    x = 775.27

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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.