Home / 3,059.06-4,221.50-1,661.80

Finding the Fourth Proportional to 3,059.06, 4,221.50 and 1,661.80

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Solution

The fourth proportional to 3,059.06, 4,221.50 and 1,661.80 is: 2,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.06 : 4,221.50 = 1,661.80 : x
  2. Step 2: Convert to fraction form
    3,059.06/4,221.50 = 1,661.80/x
  3. Step 3: Cross multiply
    3,059.06x = 4,221.50 × 1,661.80
  4. Step 4: Simplify right side
    3,059.06x = 7,015,288.70
  5. Step 5: Solve for x
    x = 7,015,288.70/3,059.06
  6. Step 6: Final answer
    x = 2,293.28

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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.