Home / 5,106.21-7,659.60-1,819.31

Finding the Fourth Proportional to 5,106.21, 7,659.60 and 1,819.31

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Solution

The fourth proportional to 5,106.21, 7,659.60 and 1,819.31 is: 2,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.21 : 7,659.60 = 1,819.31 : x
  2. Step 2: Convert to fraction form
    5,106.21/7,659.60 = 1,819.31/x
  3. Step 3: Cross multiply
    5,106.21x = 7,659.60 × 1,819.31
  4. Step 4: Simplify right side
    5,106.21x = 13,935,148.58
  5. Step 5: Solve for x
    x = 13,935,148.58/5,106.21
  6. Step 6: Final answer
    x = 2,729.06

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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.