Home / 2,672.09-4,015.27-1,440.38

Finding the Fourth Proportional to 2,672.09, 4,015.27 and 1,440.38

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Solution

The fourth proportional to 2,672.09, 4,015.27 and 1,440.38 is: 2,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.09 : 4,015.27 = 1,440.38 : x
  2. Step 2: Convert to fraction form
    2,672.09/4,015.27 = 1,440.38/x
  3. Step 3: Cross multiply
    2,672.09x = 4,015.27 × 1,440.38
  4. Step 4: Simplify right side
    2,672.09x = 5,783,526.44
  5. Step 5: Solve for x
    x = 5,783,526.44/2,672.09
  6. Step 6: Final answer
    x = 2,164.42

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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.