Home / 3,054.09-4,214.79-1,728.21

Finding the Fourth Proportional to 3,054.09, 4,214.79 and 1,728.21

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Solution

The fourth proportional to 3,054.09, 4,214.79 and 1,728.21 is: 2,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.09 : 4,214.79 = 1,728.21 : x
  2. Step 2: Convert to fraction form
    3,054.09/4,214.79 = 1,728.21/x
  3. Step 3: Cross multiply
    3,054.09x = 4,214.79 × 1,728.21
  4. Step 4: Simplify right side
    3,054.09x = 7,284,042.23
  5. Step 5: Solve for x
    x = 7,284,042.23/3,054.09
  6. Step 6: Final answer
    x = 2,385.01

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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.