Home / 7,482.21-11,231.52-3,102.75

Finding the Fourth Proportional to 7,482.21, 11,231.52 and 3,102.75

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Solution

The fourth proportional to 7,482.21, 11,231.52 and 3,102.75 is: 4,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.21 : 11,231.52 = 3,102.75 : x
  2. Step 2: Convert to fraction form
    7,482.21/11,231.52 = 3,102.75/x
  3. Step 3: Cross multiply
    7,482.21x = 11,231.52 × 3,102.75
  4. Step 4: Simplify right side
    7,482.21x = 34,848,598.68
  5. Step 5: Solve for x
    x = 34,848,598.68/7,482.21
  6. Step 6: Final answer
    x = 4,657.53

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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.