Home / 3,058.60-4,220.79-1,732.63

Finding the Fourth Proportional to 3,058.60, 4,220.79 and 1,732.63

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Solution

The fourth proportional to 3,058.60, 4,220.79 and 1,732.63 is: 2,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.60 : 4,220.79 = 1,732.63 : x
  2. Step 2: Convert to fraction form
    3,058.60/4,220.79 = 1,732.63/x
  3. Step 3: Cross multiply
    3,058.60x = 4,220.79 × 1,732.63
  4. Step 4: Simplify right side
    3,058.60x = 7,313,067.38
  5. Step 5: Solve for x
    x = 7,313,067.38/3,058.60
  6. Step 6: Final answer
    x = 2,390.99

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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.