Home / 1,906.26-2,630.54-1,120.26

Finding the Fourth Proportional to 1,906.26, 2,630.54 and 1,120.26

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Solution

The fourth proportional to 1,906.26, 2,630.54 and 1,120.26 is: 1,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.26 : 2,630.54 = 1,120.26 : x
  2. Step 2: Convert to fraction form
    1,906.26/2,630.54 = 1,120.26/x
  3. Step 3: Cross multiply
    1,906.26x = 2,630.54 × 1,120.26
  4. Step 4: Simplify right side
    1,906.26x = 2,946,888.74
  5. Step 5: Solve for x
    x = 2,946,888.74/1,906.26
  6. Step 6: Final answer
    x = 1,545.90

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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.