Home / 1,743.67-2,615.47-445.12

Finding the Fourth Proportional to 1,743.67, 2,615.47 and 445.12

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Solution

The fourth proportional to 1,743.67, 2,615.47 and 445.12 is: 667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.67 : 2,615.47 = 445.12 : x
  2. Step 2: Convert to fraction form
    1,743.67/2,615.47 = 445.12/x
  3. Step 3: Cross multiply
    1,743.67x = 2,615.47 × 445.12
  4. Step 4: Simplify right side
    1,743.67x = 1,164,198.01
  5. Step 5: Solve for x
    x = 1,164,198.01/1,743.67
  6. Step 6: Final answer
    x = 667.67

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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.