Home / 3,058.38-4,220.82-1,879.74

Finding the Fourth Proportional to 3,058.38, 4,220.82 and 1,879.74

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Solution

The fourth proportional to 3,058.38, 4,220.82 and 1,879.74 is: 2,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.38 : 4,220.82 = 1,879.74 : x
  2. Step 2: Convert to fraction form
    3,058.38/4,220.82 = 1,879.74/x
  3. Step 3: Cross multiply
    3,058.38x = 4,220.82 × 1,879.74
  4. Step 4: Simplify right side
    3,058.38x = 7,934,044.19
  5. Step 5: Solve for x
    x = 7,934,044.19/3,058.38
  6. Step 6: Final answer
    x = 2,594.20

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Half scale
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Double scale
Find fourth proportional to 3,059.38, 4,222.20 and 1,880.74
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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.