Home / 3,034.75-4,185.85-1,856.40

Finding the Fourth Proportional to 3,034.75, 4,185.85 and 1,856.40

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Solution

The fourth proportional to 3,034.75, 4,185.85 and 1,856.40 is: 2,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.75 : 4,185.85 = 1,856.40 : x
  2. Step 2: Convert to fraction form
    3,034.75/4,185.85 = 1,856.40/x
  3. Step 3: Cross multiply
    3,034.75x = 4,185.85 × 1,856.40
  4. Step 4: Simplify right side
    3,034.75x = 7,770,611.94
  5. Step 5: Solve for x
    x = 7,770,611.94/3,034.75
  6. Step 6: Final answer
    x = 2,560.55

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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.