Home / 4,778.85-7,168.62-1,268.82

Finding the Fourth Proportional to 4,778.85, 7,168.62 and 1,268.82

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Solution

The fourth proportional to 4,778.85, 7,168.62 and 1,268.82 is: 1,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.85 : 7,168.62 = 1,268.82 : x
  2. Step 2: Convert to fraction form
    4,778.85/7,168.62 = 1,268.82/x
  3. Step 3: Cross multiply
    4,778.85x = 7,168.62 × 1,268.82
  4. Step 4: Simplify right side
    4,778.85x = 9,095,688.43
  5. Step 5: Solve for x
    x = 9,095,688.43/4,778.85
  6. Step 6: Final answer
    x = 1,903.32

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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.