Home / 1,176.08-1,764.21-445.66

Finding the Fourth Proportional to 1,176.08, 1,764.21 and 445.66

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Solution

The fourth proportional to 1,176.08, 1,764.21 and 445.66 is: 668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.08 : 1,764.21 = 445.66 : x
  2. Step 2: Convert to fraction form
    1,176.08/1,764.21 = 445.66/x
  3. Step 3: Cross multiply
    1,176.08x = 1,764.21 × 445.66
  4. Step 4: Simplify right side
    1,176.08x = 786,233.98
  5. Step 5: Solve for x
    x = 786,233.98/1,176.08
  6. Step 6: Final answer
    x = 668.52

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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.