Home / 3,055.19-4,216.03-1,728.91

Finding the Fourth Proportional to 3,055.19, 4,216.03 and 1,728.91

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Solution

The fourth proportional to 3,055.19, 4,216.03 and 1,728.91 is: 2,385.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.19 : 4,216.03 = 1,728.91 : x
  2. Step 2: Convert to fraction form
    3,055.19/4,216.03 = 1,728.91/x
  3. Step 3: Cross multiply
    3,055.19x = 4,216.03 × 1,728.91
  4. Step 4: Simplify right side
    3,055.19x = 7,289,147.10
  5. Step 5: Solve for x
    x = 7,289,147.10/3,055.19
  6. Step 6: Final answer
    x = 2,385.83

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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.