Home / 1,902.78-2,625.48-1,116.54

Finding the Fourth Proportional to 1,902.78, 2,625.48 and 1,116.54

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Solution

The fourth proportional to 1,902.78, 2,625.48 and 1,116.54 is: 1,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.78 : 2,625.48 = 1,116.54 : x
  2. Step 2: Convert to fraction form
    1,902.78/2,625.48 = 1,116.54/x
  3. Step 3: Cross multiply
    1,902.78x = 2,625.48 × 1,116.54
  4. Step 4: Simplify right side
    1,902.78x = 2,931,453.44
  5. Step 5: Solve for x
    x = 2,931,453.44/1,902.78
  6. Step 6: Final answer
    x = 1,540.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.