Home / 4,842.20-7,277.70-4,208.60

Finding the Fourth Proportional to 4,842.20, 7,277.70 and 4,208.60

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Solution

The fourth proportional to 4,842.20, 7,277.70 and 4,208.60 is: 6,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.20 : 7,277.70 = 4,208.60 : x
  2. Step 2: Convert to fraction form
    4,842.20/7,277.70 = 4,208.60/x
  3. Step 3: Cross multiply
    4,842.20x = 7,277.70 × 4,208.60
  4. Step 4: Simplify right side
    4,842.20x = 30,628,928.22
  5. Step 5: Solve for x
    x = 30,628,928.22/4,842.20
  6. Step 6: Final answer
    x = 6,325.42

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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.