Home / 3,058.30-4,220.50-1,661.06

Finding the Fourth Proportional to 3,058.30, 4,220.50 and 1,661.06

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Solution

The fourth proportional to 3,058.30, 4,220.50 and 1,661.06 is: 2,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.30 : 4,220.50 = 1,661.06 : x
  2. Step 2: Convert to fraction form
    3,058.30/4,220.50 = 1,661.06/x
  3. Step 3: Cross multiply
    3,058.30x = 4,220.50 × 1,661.06
  4. Step 4: Simplify right side
    3,058.30x = 7,010,503.73
  5. Step 5: Solve for x
    x = 7,010,503.73/3,058.30
  6. Step 6: Final answer
    x = 2,292.29

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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.