Home / 3,055.22-4,215.93-1,728.71

Finding the Fourth Proportional to 3,055.22, 4,215.93 and 1,728.71

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Solution

The fourth proportional to 3,055.22, 4,215.93 and 1,728.71 is: 2,385.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.22 : 4,215.93 = 1,728.71 : x
  2. Step 2: Convert to fraction form
    3,055.22/4,215.93 = 1,728.71/x
  3. Step 3: Cross multiply
    3,055.22x = 4,215.93 × 1,728.71
  4. Step 4: Simplify right side
    3,055.22x = 7,288,124.41
  5. Step 5: Solve for x
    x = 7,288,124.41/3,055.22
  6. Step 6: Final answer
    x = 2,385.46

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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.