Home / 2,190.14-3,280.96-1,944.71

Finding the Fourth Proportional to 2,190.14, 3,280.96 and 1,944.71

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Solution

The fourth proportional to 2,190.14, 3,280.96 and 1,944.71 is: 2,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.14 : 3,280.96 = 1,944.71 : x
  2. Step 2: Convert to fraction form
    2,190.14/3,280.96 = 1,944.71/x
  3. Step 3: Cross multiply
    2,190.14x = 3,280.96 × 1,944.71
  4. Step 4: Simplify right side
    2,190.14x = 6,380,532.51
  5. Step 5: Solve for x
    x = 6,380,532.51/2,190.14
  6. Step 6: Final answer
    x = 2,913.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.