Home / 3,058.63-4,221.52-1,940.90

Finding the Fourth Proportional to 3,058.63, 4,221.52 and 1,940.90

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Solution

The fourth proportional to 3,058.63, 4,221.52 and 1,940.90 is: 2,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.63 : 4,221.52 = 1,940.90 : x
  2. Step 2: Convert to fraction form
    3,058.63/4,221.52 = 1,940.90/x
  3. Step 3: Cross multiply
    3,058.63x = 4,221.52 × 1,940.90
  4. Step 4: Simplify right side
    3,058.63x = 8,193,522.21
  5. Step 5: Solve for x
    x = 8,193,522.21/3,058.63
  6. Step 6: Final answer
    x = 2,678.82

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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.