Home / 7,628.20-11,441.58-3,928.48

Finding the Fourth Proportional to 7,628.20, 11,441.58 and 3,928.48

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Solution

The fourth proportional to 7,628.20, 11,441.58 and 3,928.48 is: 5,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.20 : 11,441.58 = 3,928.48 : x
  2. Step 2: Convert to fraction form
    7,628.20/11,441.58 = 3,928.48/x
  3. Step 3: Cross multiply
    7,628.20x = 11,441.58 × 3,928.48
  4. Step 4: Simplify right side
    7,628.20x = 44,948,018.20
  5. Step 5: Solve for x
    x = 44,948,018.20/7,628.20
  6. Step 6: Final answer
    x = 5,892.35

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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.