Home / 3,179.88-4,763.34-1,330.25

Finding the Fourth Proportional to 3,179.88, 4,763.34 and 1,330.25

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Solution

The fourth proportional to 3,179.88, 4,763.34 and 1,330.25 is: 1,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.88 : 4,763.34 = 1,330.25 : x
  2. Step 2: Convert to fraction form
    3,179.88/4,763.34 = 1,330.25/x
  3. Step 3: Cross multiply
    3,179.88x = 4,763.34 × 1,330.25
  4. Step 4: Simplify right side
    3,179.88x = 6,336,409.22
  5. Step 5: Solve for x
    x = 6,336,409.22/3,179.88
  6. Step 6: Final answer
    x = 1,992.66

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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.