Home / 3,105.26-4,283.75-1,845.42

Finding the Fourth Proportional to 3,105.26, 4,283.75 and 1,845.42

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Solution

The fourth proportional to 3,105.26, 4,283.75 and 1,845.42 is: 2,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.26 : 4,283.75 = 1,845.42 : x
  2. Step 2: Convert to fraction form
    3,105.26/4,283.75 = 1,845.42/x
  3. Step 3: Cross multiply
    3,105.26x = 4,283.75 × 1,845.42
  4. Step 4: Simplify right side
    3,105.26x = 7,905,328.63
  5. Step 5: Solve for x
    x = 7,905,328.63/3,105.26
  6. Step 6: Final answer
    x = 2,545.79

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1.5x scale

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.