Home / 3,055.29-4,216.38-1,728.93

Finding the Fourth Proportional to 3,055.29, 4,216.38 and 1,728.93

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Solution

The fourth proportional to 3,055.29, 4,216.38 and 1,728.93 is: 2,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.29 : 4,216.38 = 1,728.93 : x
  2. Step 2: Convert to fraction form
    3,055.29/4,216.38 = 1,728.93/x
  3. Step 3: Cross multiply
    3,055.29x = 4,216.38 × 1,728.93
  4. Step 4: Simplify right side
    3,055.29x = 7,289,825.87
  5. Step 5: Solve for x
    x = 7,289,825.87/3,055.29
  6. Step 6: Final answer
    x = 2,385.97

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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.