Home / 3,107.72-4,661.57-2,557.69

Finding the Fourth Proportional to 3,107.72, 4,661.57 and 2,557.69

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Solution

The fourth proportional to 3,107.72, 4,661.57 and 2,557.69 is: 3,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.72 : 4,661.57 = 2,557.69 : x
  2. Step 2: Convert to fraction form
    3,107.72/4,661.57 = 2,557.69/x
  3. Step 3: Cross multiply
    3,107.72x = 4,661.57 × 2,557.69
  4. Step 4: Simplify right side
    3,107.72x = 11,922,845.71
  5. Step 5: Solve for x
    x = 11,922,845.71/3,107.72
  6. Step 6: Final answer
    x = 3,836.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.