Home / 3,180.15-4,768.87-1,718.91

Finding the Fourth Proportional to 3,180.15, 4,768.87 and 1,718.91

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Solution

The fourth proportional to 3,180.15, 4,768.87 and 1,718.91 is: 2,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.15 : 4,768.87 = 1,718.91 : x
  2. Step 2: Convert to fraction form
    3,180.15/4,768.87 = 1,718.91/x
  3. Step 3: Cross multiply
    3,180.15x = 4,768.87 × 1,718.91
  4. Step 4: Simplify right side
    3,180.15x = 8,197,258.33
  5. Step 5: Solve for x
    x = 8,197,258.33/3,180.15
  6. Step 6: Final answer
    x = 2,577.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.