Home / 2,288.68-3,431.70-2,015.32

Finding the Fourth Proportional to 2,288.68, 3,431.70 and 2,015.32

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Solution

The fourth proportional to 2,288.68, 3,431.70 and 2,015.32 is: 3,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.68 : 3,431.70 = 2,015.32 : x
  2. Step 2: Convert to fraction form
    2,288.68/3,431.70 = 2,015.32/x
  3. Step 3: Cross multiply
    2,288.68x = 3,431.70 × 2,015.32
  4. Step 4: Simplify right side
    2,288.68x = 6,915,973.64
  5. Step 5: Solve for x
    x = 6,915,973.64/2,288.68
  6. Step 6: Final answer
    x = 3,021.82

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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.