Home / 3,822.54-5,278.67-3,615.44

Finding the Fourth Proportional to 3,822.54, 5,278.67 and 3,615.44

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Solution

The fourth proportional to 3,822.54, 5,278.67 and 3,615.44 is: 4,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.54 : 5,278.67 = 3,615.44 : x
  2. Step 2: Convert to fraction form
    3,822.54/5,278.67 = 3,615.44/x
  3. Step 3: Cross multiply
    3,822.54x = 5,278.67 × 3,615.44
  4. Step 4: Simplify right side
    3,822.54x = 19,084,683.75
  5. Step 5: Solve for x
    x = 19,084,683.75/3,822.54
  6. Step 6: Final answer
    x = 4,992.67

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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.