Home / 2,836.95-3,914.73-2,091.32

Finding the Fourth Proportional to 2,836.95, 3,914.73 and 2,091.32

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Solution

The fourth proportional to 2,836.95, 3,914.73 and 2,091.32 is: 2,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.95 : 3,914.73 = 2,091.32 : x
  2. Step 2: Convert to fraction form
    2,836.95/3,914.73 = 2,091.32/x
  3. Step 3: Cross multiply
    2,836.95x = 3,914.73 × 2,091.32
  4. Step 4: Simplify right side
    2,836.95x = 8,186,948.25
  5. Step 5: Solve for x
    x = 8,186,948.25/2,836.95
  6. Step 6: Final answer
    x = 2,885.83

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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.