Home / 1,983.75-2,736.48-1,274.81

Finding the Fourth Proportional to 1,983.75, 2,736.48 and 1,274.81

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Solution

The fourth proportional to 1,983.75, 2,736.48 and 1,274.81 is: 1,758.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.75 : 2,736.48 = 1,274.81 : x
  2. Step 2: Convert to fraction form
    1,983.75/2,736.48 = 1,274.81/x
  3. Step 3: Cross multiply
    1,983.75x = 2,736.48 × 1,274.81
  4. Step 4: Simplify right side
    1,983.75x = 3,488,478.39
  5. Step 5: Solve for x
    x = 3,488,478.39/1,983.75
  6. Step 6: Final answer
    x = 1,758.53

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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.