Home / 5,668.56-7,820.08-3,778.30

Finding the Fourth Proportional to 5,668.56, 7,820.08 and 3,778.30

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Solution

The fourth proportional to 5,668.56, 7,820.08 and 3,778.30 is: 5,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,668.56 : 7,820.08 = 3,778.30 : x
  2. Step 2: Convert to fraction form
    5,668.56/7,820.08 = 3,778.30/x
  3. Step 3: Cross multiply
    5,668.56x = 7,820.08 × 3,778.30
  4. Step 4: Simplify right side
    5,668.56x = 29,546,608.26
  5. Step 5: Solve for x
    x = 29,546,608.26/5,668.56
  6. Step 6: Final answer
    x = 5,212.37

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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.