Home / 3,846.35-5,307.31-2,144.48

Finding the Fourth Proportional to 3,846.35, 5,307.31 and 2,144.48

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Solution

The fourth proportional to 3,846.35, 5,307.31 and 2,144.48 is: 2,959.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.35 : 5,307.31 = 2,144.48 : x
  2. Step 2: Convert to fraction form
    3,846.35/5,307.31 = 2,144.48/x
  3. Step 3: Cross multiply
    3,846.35x = 5,307.31 × 2,144.48
  4. Step 4: Simplify right side
    3,846.35x = 11,381,409.43
  5. Step 5: Solve for x
    x = 11,381,409.43/3,846.35
  6. Step 6: Final answer
    x = 2,959.02

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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.