Home / 2,190.78-3,022.23-1,481.70

Finding the Fourth Proportional to 2,190.78, 3,022.23 and 1,481.70

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Solution

The fourth proportional to 2,190.78, 3,022.23 and 1,481.70 is: 2,044.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.78 : 3,022.23 = 1,481.70 : x
  2. Step 2: Convert to fraction form
    2,190.78/3,022.23 = 1,481.70/x
  3. Step 3: Cross multiply
    2,190.78x = 3,022.23 × 1,481.70
  4. Step 4: Simplify right side
    2,190.78x = 4,478,038.19
  5. Step 5: Solve for x
    x = 4,478,038.19/2,190.78
  6. Step 6: Final answer
    x = 2,044.04

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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.