Home / 1,938.51-2,910.48-1,850.43

Finding the Fourth Proportional to 1,938.51, 2,910.48 and 1,850.43

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Solution

The fourth proportional to 1,938.51, 2,910.48 and 1,850.43 is: 2,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.51 : 2,910.48 = 1,850.43 : x
  2. Step 2: Convert to fraction form
    1,938.51/2,910.48 = 1,850.43/x
  3. Step 3: Cross multiply
    1,938.51x = 2,910.48 × 1,850.43
  4. Step 4: Simplify right side
    1,938.51x = 5,385,639.51
  5. Step 5: Solve for x
    x = 5,385,639.51/1,938.51
  6. Step 6: Final answer
    x = 2,778.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.