Home / 4,819.40-7,230.26-1,656.79

Finding the Fourth Proportional to 4,819.40, 7,230.26 and 1,656.79

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Solution

The fourth proportional to 4,819.40, 7,230.26 and 1,656.79 is: 2,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.40 : 7,230.26 = 1,656.79 : x
  2. Step 2: Convert to fraction form
    4,819.40/7,230.26 = 1,656.79/x
  3. Step 3: Cross multiply
    4,819.40x = 7,230.26 × 1,656.79
  4. Step 4: Simplify right side
    4,819.40x = 11,978,978.03
  5. Step 5: Solve for x
    x = 11,978,978.03/4,819.40
  6. Step 6: Final answer
    x = 2,485.57

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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.