Home / 3,705.48-5,120.01-2,965.55

Finding the Fourth Proportional to 3,705.48, 5,120.01 and 2,965.55

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Solution

The fourth proportional to 3,705.48, 5,120.01 and 2,965.55 is: 4,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.48 : 5,120.01 = 2,965.55 : x
  2. Step 2: Convert to fraction form
    3,705.48/5,120.01 = 2,965.55/x
  3. Step 3: Cross multiply
    3,705.48x = 5,120.01 × 2,965.55
  4. Step 4: Simplify right side
    3,705.48x = 15,183,620.06
  5. Step 5: Solve for x
    x = 15,183,620.06/3,705.48
  6. Step 6: Final answer
    x = 4,097.61

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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.