Home / 2,715.37-4,074.21-1,838.86

Finding the Fourth Proportional to 2,715.37, 4,074.21 and 1,838.86

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Solution

The fourth proportional to 2,715.37, 4,074.21 and 1,838.86 is: 2,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.37 : 4,074.21 = 1,838.86 : x
  2. Step 2: Convert to fraction form
    2,715.37/4,074.21 = 1,838.86/x
  3. Step 3: Cross multiply
    2,715.37x = 4,074.21 × 1,838.86
  4. Step 4: Simplify right side
    2,715.37x = 7,491,901.80
  5. Step 5: Solve for x
    x = 7,491,901.80/2,715.37
  6. Step 6: Final answer
    x = 2,759.07

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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.