Home / 1,983.53-2,736.77-1,237.85

Finding the Fourth Proportional to 1,983.53, 2,736.77 and 1,237.85

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Solution

The fourth proportional to 1,983.53, 2,736.77 and 1,237.85 is: 1,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.53 : 2,736.77 = 1,237.85 : x
  2. Step 2: Convert to fraction form
    1,983.53/2,736.77 = 1,237.85/x
  3. Step 3: Cross multiply
    1,983.53x = 2,736.77 × 1,237.85
  4. Step 4: Simplify right side
    1,983.53x = 3,387,704.56
  5. Step 5: Solve for x
    x = 3,387,704.56/1,983.53
  6. Step 6: Final answer
    x = 1,707.92

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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.