Home / 3,054.90-4,216.11-1,728.69

Finding the Fourth Proportional to 3,054.90, 4,216.11 and 1,728.69

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Solution

The fourth proportional to 3,054.90, 4,216.11 and 1,728.69 is: 2,385.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.90 : 4,216.11 = 1,728.69 : x
  2. Step 2: Convert to fraction form
    3,054.90/4,216.11 = 1,728.69/x
  3. Step 3: Cross multiply
    3,054.90x = 4,216.11 × 1,728.69
  4. Step 4: Simplify right side
    3,054.90x = 7,288,356.44
  5. Step 5: Solve for x
    x = 7,288,356.44/3,054.90
  6. Step 6: Final answer
    x = 2,385.79

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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.