Home / 5,072.78-7,609.65-1,375.03

Finding the Fourth Proportional to 5,072.78, 7,609.65 and 1,375.03

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Solution

The fourth proportional to 5,072.78, 7,609.65 and 1,375.03 is: 2,062.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.78 : 7,609.65 = 1,375.03 : x
  2. Step 2: Convert to fraction form
    5,072.78/7,609.65 = 1,375.03/x
  3. Step 3: Cross multiply
    5,072.78x = 7,609.65 × 1,375.03
  4. Step 4: Simplify right side
    5,072.78x = 10,463,458.59
  5. Step 5: Solve for x
    x = 10,463,458.59/5,072.78
  6. Step 6: Final answer
    x = 2,062.67

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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.