Home / 3,846.21-5,307.86-2,274.33

Finding the Fourth Proportional to 3,846.21, 5,307.86 and 2,274.33

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Solution

The fourth proportional to 3,846.21, 5,307.86 and 2,274.33 is: 3,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.21 : 5,307.86 = 2,274.33 : x
  2. Step 2: Convert to fraction form
    3,846.21/5,307.86 = 2,274.33/x
  3. Step 3: Cross multiply
    3,846.21x = 5,307.86 × 2,274.33
  4. Step 4: Simplify right side
    3,846.21x = 12,071,813.86
  5. Step 5: Solve for x
    x = 12,071,813.86/3,846.21
  6. Step 6: Final answer
    x = 3,138.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.