Home / 2,190.14-3,005.03-2,169.48

Finding the Fourth Proportional to 2,190.14, 3,005.03 and 2,169.48

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Solution

The fourth proportional to 2,190.14, 3,005.03 and 2,169.48 is: 2,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.14 : 3,005.03 = 2,169.48 : x
  2. Step 2: Convert to fraction form
    2,190.14/3,005.03 = 2,169.48/x
  3. Step 3: Cross multiply
    2,190.14x = 3,005.03 × 2,169.48
  4. Step 4: Simplify right side
    2,190.14x = 6,519,341.64
  5. Step 5: Solve for x
    x = 6,519,341.64/2,190.14
  6. Step 6: Final answer
    x = 2,976.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.