Home / 2,836.75-3,914.71-1,577.77

Finding the Fourth Proportional to 2,836.75, 3,914.71 and 1,577.77

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Solution

The fourth proportional to 2,836.75, 3,914.71 and 1,577.77 is: 2,177.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.75 : 3,914.71 = 1,577.77 : x
  2. Step 2: Convert to fraction form
    2,836.75/3,914.71 = 1,577.77/x
  3. Step 3: Cross multiply
    2,836.75x = 3,914.71 × 1,577.77
  4. Step 4: Simplify right side
    2,836.75x = 6,176,512.00
  5. Step 5: Solve for x
    x = 6,176,512.00/2,836.75
  6. Step 6: Final answer
    x = 2,177.32

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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.