Home / 2,229.79-3,076.98-1,235.02

Finding the Fourth Proportional to 2,229.79, 3,076.98 and 1,235.02

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Solution

The fourth proportional to 2,229.79, 3,076.98 and 1,235.02 is: 1,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.79 : 3,076.98 = 1,235.02 : x
  2. Step 2: Convert to fraction form
    2,229.79/3,076.98 = 1,235.02/x
  3. Step 3: Cross multiply
    2,229.79x = 3,076.98 × 1,235.02
  4. Step 4: Simplify right side
    2,229.79x = 3,800,131.84
  5. Step 5: Solve for x
    x = 3,800,131.84/2,229.79
  6. Step 6: Final answer
    x = 1,704.26

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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.