Home / 3,129.04-4,698.93-2,778.44

Finding the Fourth Proportional to 3,129.04, 4,698.93 and 2,778.44

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Solution

The fourth proportional to 3,129.04, 4,698.93 and 2,778.44 is: 4,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.04 : 4,698.93 = 2,778.44 : x
  2. Step 2: Convert to fraction form
    3,129.04/4,698.93 = 2,778.44/x
  3. Step 3: Cross multiply
    3,129.04x = 4,698.93 × 2,778.44
  4. Step 4: Simplify right side
    3,129.04x = 13,055,657.68
  5. Step 5: Solve for x
    x = 13,055,657.68/3,129.04
  6. Step 6: Final answer
    x = 4,172.42

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1.5x scale

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.