Home / 5,768.20-7,954.85-3,778.03

Finding the Fourth Proportional to 5,768.20, 7,954.85 and 3,778.03

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Solution

The fourth proportional to 5,768.20, 7,954.85 and 3,778.03 is: 5,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.20 : 7,954.85 = 3,778.03 : x
  2. Step 2: Convert to fraction form
    5,768.20/7,954.85 = 3,778.03/x
  3. Step 3: Cross multiply
    5,768.20x = 7,954.85 × 3,778.03
  4. Step 4: Simplify right side
    5,768.20x = 30,053,651.50
  5. Step 5: Solve for x
    x = 30,053,651.50/5,768.20
  6. Step 6: Final answer
    x = 5,210.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.