Home / 3,908.60-5,858.81-2,812.37

Finding the Fourth Proportional to 3,908.60, 5,858.81 and 2,812.37

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Solution

The fourth proportional to 3,908.60, 5,858.81 and 2,812.37 is: 4,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.60 : 5,858.81 = 2,812.37 : x
  2. Step 2: Convert to fraction form
    3,908.60/5,858.81 = 2,812.37/x
  3. Step 3: Cross multiply
    3,908.60x = 5,858.81 × 2,812.37
  4. Step 4: Simplify right side
    3,908.60x = 16,477,141.48
  5. Step 5: Solve for x
    x = 16,477,141.48/3,908.60
  6. Step 6: Final answer
    x = 4,215.61

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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.