Home / 2,190.69-3,022.02-1,305.77

Finding the Fourth Proportional to 2,190.69, 3,022.02 and 1,305.77

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Solution

The fourth proportional to 2,190.69, 3,022.02 and 1,305.77 is: 1,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.69 : 3,022.02 = 1,305.77 : x
  2. Step 2: Convert to fraction form
    2,190.69/3,022.02 = 1,305.77/x
  3. Step 3: Cross multiply
    2,190.69x = 3,022.02 × 1,305.77
  4. Step 4: Simplify right side
    2,190.69x = 3,946,047.95
  5. Step 5: Solve for x
    x = 3,946,047.95/2,190.69
  6. Step 6: Final answer
    x = 1,801.28

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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.