Home / 1,906.10-2,630.44-1,120.16

Finding the Fourth Proportional to 1,906.10, 2,630.44 and 1,120.16

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Solution

The fourth proportional to 1,906.10, 2,630.44 and 1,120.16 is: 1,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.10 : 2,630.44 = 1,120.16 : x
  2. Step 2: Convert to fraction form
    1,906.10/2,630.44 = 1,120.16/x
  3. Step 3: Cross multiply
    1,906.10x = 2,630.44 × 1,120.16
  4. Step 4: Simplify right side
    1,906.10x = 2,946,513.67
  5. Step 5: Solve for x
    x = 2,946,513.67/1,906.10
  6. Step 6: Final answer
    x = 1,545.83

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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.