Home / 1,938.92-2,676.20-1,241.51

Finding the Fourth Proportional to 1,938.92, 2,676.20 and 1,241.51

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Solution

The fourth proportional to 1,938.92, 2,676.20 and 1,241.51 is: 1,713.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.92 : 2,676.20 = 1,241.51 : x
  2. Step 2: Convert to fraction form
    1,938.92/2,676.20 = 1,241.51/x
  3. Step 3: Cross multiply
    1,938.92x = 2,676.20 × 1,241.51
  4. Step 4: Simplify right side
    1,938.92x = 3,322,509.47
  5. Step 5: Solve for x
    x = 3,322,509.47/1,938.92
  6. Step 6: Final answer
    x = 1,713.59

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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.