Home / 1,938.06-2,677.66-1,351.22

Finding the Fourth Proportional to 1,938.06, 2,677.66 and 1,351.22

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Solution

The fourth proportional to 1,938.06, 2,677.66 and 1,351.22 is: 1,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.06 : 2,677.66 = 1,351.22 : x
  2. Step 2: Convert to fraction form
    1,938.06/2,677.66 = 1,351.22/x
  3. Step 3: Cross multiply
    1,938.06x = 2,677.66 × 1,351.22
  4. Step 4: Simplify right side
    1,938.06x = 3,618,090.98
  5. Step 5: Solve for x
    x = 3,618,090.98/1,938.06
  6. Step 6: Final answer
    x = 1,866.86

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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.