Home / 2,728.21-4,086.95-1,800.93

Finding the Fourth Proportional to 2,728.21, 4,086.95 and 1,800.93

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Solution

The fourth proportional to 2,728.21, 4,086.95 and 1,800.93 is: 2,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.21 : 4,086.95 = 1,800.93 : x
  2. Step 2: Convert to fraction form
    2,728.21/4,086.95 = 1,800.93/x
  3. Step 3: Cross multiply
    2,728.21x = 4,086.95 × 1,800.93
  4. Step 4: Simplify right side
    2,728.21x = 7,360,310.86
  5. Step 5: Solve for x
    x = 7,360,310.86/2,728.21
  6. Step 6: Final answer
    x = 2,697.85

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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.