Home / 3,059.07-4,221.51-1,661.82

Finding the Fourth Proportional to 3,059.07, 4,221.51 and 1,661.82

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Solution

The fourth proportional to 3,059.07, 4,221.51 and 1,661.82 is: 2,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.07 : 4,221.51 = 1,661.82 : x
  2. Step 2: Convert to fraction form
    3,059.07/4,221.51 = 1,661.82/x
  3. Step 3: Cross multiply
    3,059.07x = 4,221.51 × 1,661.82
  4. Step 4: Simplify right side
    3,059.07x = 7,015,389.75
  5. Step 5: Solve for x
    x = 7,015,389.75/3,059.07
  6. Step 6: Final answer
    x = 2,293.31

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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.