Home / 3,107.05-4,288.86-2,059.45

Finding the Fourth Proportional to 3,107.05, 4,288.86 and 2,059.45

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Solution

The fourth proportional to 3,107.05, 4,288.86 and 2,059.45 is: 2,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.05 : 4,288.86 = 2,059.45 : x
  2. Step 2: Convert to fraction form
    3,107.05/4,288.86 = 2,059.45/x
  3. Step 3: Cross multiply
    3,107.05x = 4,288.86 × 2,059.45
  4. Step 4: Simplify right side
    3,107.05x = 8,832,682.00
  5. Step 5: Solve for x
    x = 8,832,682.00/3,107.05
  6. Step 6: Final answer
    x = 2,842.79

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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.