Home / 1,245.06-1,867.43-514.54

Finding the Fourth Proportional to 1,245.06, 1,867.43 and 514.54

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Solution

The fourth proportional to 1,245.06, 1,867.43 and 514.54 is: 771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.06 : 1,867.43 = 514.54 : x
  2. Step 2: Convert to fraction form
    1,245.06/1,867.43 = 514.54/x
  3. Step 3: Cross multiply
    1,245.06x = 1,867.43 × 514.54
  4. Step 4: Simplify right side
    1,245.06x = 960,855.52
  5. Step 5: Solve for x
    x = 960,855.52/1,245.06
  6. Step 6: Final answer
    x = 771.73

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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.