Home / 3,768.20-5,188.50-3,347.82

Finding the Fourth Proportional to 3,768.20, 5,188.50 and 3,347.82

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Solution

The fourth proportional to 3,768.20, 5,188.50 and 3,347.82 is: 4,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.20 : 5,188.50 = 3,347.82 : x
  2. Step 2: Convert to fraction form
    3,768.20/5,188.50 = 3,347.82/x
  3. Step 3: Cross multiply
    3,768.20x = 5,188.50 × 3,347.82
  4. Step 4: Simplify right side
    3,768.20x = 17,370,164.07
  5. Step 5: Solve for x
    x = 17,370,164.07/3,768.20
  6. Step 6: Final answer
    x = 4,609.67

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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.