Home / 3,168.36-4,748.40-1,705.79

Finding the Fourth Proportional to 3,168.36, 4,748.40 and 1,705.79

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Solution

The fourth proportional to 3,168.36, 4,748.40 and 1,705.79 is: 2,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.36 : 4,748.40 = 1,705.79 : x
  2. Step 2: Convert to fraction form
    3,168.36/4,748.40 = 1,705.79/x
  3. Step 3: Cross multiply
    3,168.36x = 4,748.40 × 1,705.79
  4. Step 4: Simplify right side
    3,168.36x = 8,099,749.49
  5. Step 5: Solve for x
    x = 8,099,749.49/3,168.36
  6. Step 6: Final answer
    x = 2,556.45

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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.