Home / 1,984.07-2,736.77-1,276.83

Finding the Fourth Proportional to 1,984.07, 2,736.77 and 1,276.83

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Solution

The fourth proportional to 1,984.07, 2,736.77 and 1,276.83 is: 1,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.07 : 2,736.77 = 1,276.83 : x
  2. Step 2: Convert to fraction form
    1,984.07/2,736.77 = 1,276.83/x
  3. Step 3: Cross multiply
    1,984.07x = 2,736.77 × 1,276.83
  4. Step 4: Simplify right side
    1,984.07x = 3,494,390.04
  5. Step 5: Solve for x
    x = 3,494,390.04/1,984.07
  6. Step 6: Final answer
    x = 1,761.22

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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.