Home / 3,058.31-4,220.48-1,661.06

Finding the Fourth Proportional to 3,058.31, 4,220.48 and 1,661.06

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Solution

The fourth proportional to 3,058.31, 4,220.48 and 1,661.06 is: 2,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.31 : 4,220.48 = 1,661.06 : x
  2. Step 2: Convert to fraction form
    3,058.31/4,220.48 = 1,661.06/x
  3. Step 3: Cross multiply
    3,058.31x = 4,220.48 × 1,661.06
  4. Step 4: Simplify right side
    3,058.31x = 7,010,485.21
  5. Step 5: Solve for x
    x = 7,010,485.21/3,058.31
  6. Step 6: Final answer
    x = 2,292.27

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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.