Home / 1,906.07-2,630.93-1,109.58

Finding the Fourth Proportional to 1,906.07, 2,630.93 and 1,109.58

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Solution

The fourth proportional to 1,906.07, 2,630.93 and 1,109.58 is: 1,531.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.07 : 2,630.93 = 1,109.58 : x
  2. Step 2: Convert to fraction form
    1,906.07/2,630.93 = 1,109.58/x
  3. Step 3: Cross multiply
    1,906.07x = 2,630.93 × 1,109.58
  4. Step 4: Simplify right side
    1,906.07x = 2,919,227.31
  5. Step 5: Solve for x
    x = 2,919,227.31/1,906.07
  6. Step 6: Final answer
    x = 1,531.54

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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.