Home / 4,751.46-7,121.71-2,555.57

Finding the Fourth Proportional to 4,751.46, 7,121.71 and 2,555.57

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Solution

The fourth proportional to 4,751.46, 7,121.71 and 2,555.57 is: 3,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.46 : 7,121.71 = 2,555.57 : x
  2. Step 2: Convert to fraction form
    4,751.46/7,121.71 = 2,555.57/x
  3. Step 3: Cross multiply
    4,751.46x = 7,121.71 × 2,555.57
  4. Step 4: Simplify right side
    4,751.46x = 18,200,049.42
  5. Step 5: Solve for x
    x = 18,200,049.42/4,751.46
  6. Step 6: Final answer
    x = 3,830.42

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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.