Home / 1,983.47-2,736.79-1,197.56

Finding the Fourth Proportional to 1,983.47, 2,736.79 and 1,197.56

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Solution

The fourth proportional to 1,983.47, 2,736.79 and 1,197.56 is: 1,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.47 : 2,736.79 = 1,197.56 : x
  2. Step 2: Convert to fraction form
    1,983.47/2,736.79 = 1,197.56/x
  3. Step 3: Cross multiply
    1,983.47x = 2,736.79 × 1,197.56
  4. Step 4: Simplify right side
    1,983.47x = 3,277,453.55
  5. Step 5: Solve for x
    x = 3,277,453.55/1,983.47
  6. Step 6: Final answer
    x = 1,652.39

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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.