Home / 1,518.75-2,273.85-804.75

Finding the Fourth Proportional to 1,518.75, 2,273.85 and 804.75

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Solution

The fourth proportional to 1,518.75, 2,273.85 and 804.75 is: 1,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.75 : 2,273.85 = 804.75 : x
  2. Step 2: Convert to fraction form
    1,518.75/2,273.85 = 804.75/x
  3. Step 3: Cross multiply
    1,518.75x = 2,273.85 × 804.75
  4. Step 4: Simplify right side
    1,518.75x = 1,829,880.79
  5. Step 5: Solve for x
    x = 1,829,880.79/1,518.75
  6. Step 6: Final answer
    x = 1,204.86

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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.