Home / 2,190.54-3,021.22-1,404.66

Finding the Fourth Proportional to 2,190.54, 3,021.22 and 1,404.66

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Solution

The fourth proportional to 2,190.54, 3,021.22 and 1,404.66 is: 1,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.54 : 3,021.22 = 1,404.66 : x
  2. Step 2: Convert to fraction form
    2,190.54/3,021.22 = 1,404.66/x
  3. Step 3: Cross multiply
    2,190.54x = 3,021.22 × 1,404.66
  4. Step 4: Simplify right side
    2,190.54x = 4,243,786.89
  5. Step 5: Solve for x
    x = 4,243,786.89/2,190.54
  6. Step 6: Final answer
    x = 1,937.32

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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.