Home / 3,078.80-4,622.79-1,764.03

Finding the Fourth Proportional to 3,078.80, 4,622.79 and 1,764.03

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Solution

The fourth proportional to 3,078.80, 4,622.79 and 1,764.03 is: 2,648.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.80 : 4,622.79 = 1,764.03 : x
  2. Step 2: Convert to fraction form
    3,078.80/4,622.79 = 1,764.03/x
  3. Step 3: Cross multiply
    3,078.80x = 4,622.79 × 1,764.03
  4. Step 4: Simplify right side
    3,078.80x = 8,154,740.24
  5. Step 5: Solve for x
    x = 8,154,740.24/3,078.80
  6. Step 6: Final answer
    x = 2,648.68

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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.