Home / 1,939.66-2,677-1,100.57

Finding the Fourth Proportional to 1,939.66, 2,677 and 1,100.57

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Solution

The fourth proportional to 1,939.66, 2,677 and 1,100.57 is: 1,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.66 : 2,677 = 1,100.57 : x
  2. Step 2: Convert to fraction form
    1,939.66/2,677 = 1,100.57/x
  3. Step 3: Cross multiply
    1,939.66x = 2,677 × 1,100.57
  4. Step 4: Simplify right side
    1,939.66x = 2,946,212.51
  5. Step 5: Solve for x
    x = 2,946,212.51/1,939.66
  6. Step 6: Final answer
    x = 1,518.94

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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.