Home / 3,970.73-5,486.19-3,137.83

Finding the Fourth Proportional to 3,970.73, 5,486.19 and 3,137.83

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Solution

The fourth proportional to 3,970.73, 5,486.19 and 3,137.83 is: 4,335.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.73 : 5,486.19 = 3,137.83 : x
  2. Step 2: Convert to fraction form
    3,970.73/5,486.19 = 3,137.83/x
  3. Step 3: Cross multiply
    3,970.73x = 5,486.19 × 3,137.83
  4. Step 4: Simplify right side
    3,970.73x = 17,214,731.57
  5. Step 5: Solve for x
    x = 17,214,731.57/3,970.73
  6. Step 6: Final answer
    x = 4,335.41

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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.