Home / 3,055.06-4,215.97-1,728.74

Finding the Fourth Proportional to 3,055.06, 4,215.97 and 1,728.74

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Solution

The fourth proportional to 3,055.06, 4,215.97 and 1,728.74 is: 2,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.06 : 4,215.97 = 1,728.74 : x
  2. Step 2: Convert to fraction form
    3,055.06/4,215.97 = 1,728.74/x
  3. Step 3: Cross multiply
    3,055.06x = 4,215.97 × 1,728.74
  4. Step 4: Simplify right side
    3,055.06x = 7,288,315.98
  5. Step 5: Solve for x
    x = 7,288,315.98/3,055.06
  6. Step 6: Final answer
    x = 2,385.65

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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.