Home / 3,054.05-4,215.21-1,728.19

Finding the Fourth Proportional to 3,054.05, 4,215.21 and 1,728.19

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Solution

The fourth proportional to 3,054.05, 4,215.21 and 1,728.19 is: 2,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.05 : 4,215.21 = 1,728.19 : x
  2. Step 2: Convert to fraction form
    3,054.05/4,215.21 = 1,728.19/x
  3. Step 3: Cross multiply
    3,054.05x = 4,215.21 × 1,728.19
  4. Step 4: Simplify right side
    3,054.05x = 7,284,673.43
  5. Step 5: Solve for x
    x = 7,284,673.43/3,054.05
  6. Step 6: Final answer
    x = 2,385.25

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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.