Home / 3,395.14-5,065.70-2,979.60

Finding the Fourth Proportional to 3,395.14, 5,065.70 and 2,979.60

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Solution

The fourth proportional to 3,395.14, 5,065.70 and 2,979.60 is: 4,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.14 : 5,065.70 = 2,979.60 : x
  2. Step 2: Convert to fraction form
    3,395.14/5,065.70 = 2,979.60/x
  3. Step 3: Cross multiply
    3,395.14x = 5,065.70 × 2,979.60
  4. Step 4: Simplify right side
    3,395.14x = 15,093,759.72
  5. Step 5: Solve for x
    x = 15,093,759.72/3,395.14
  6. Step 6: Final answer
    x = 4,445.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.