Home / 2,829.50-4,243.05-1,074.20

Finding the Fourth Proportional to 2,829.50, 4,243.05 and 1,074.20

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Solution

The fourth proportional to 2,829.50, 4,243.05 and 1,074.20 is: 1,610.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.50 : 4,243.05 = 1,074.20 : x
  2. Step 2: Convert to fraction form
    2,829.50/4,243.05 = 1,074.20/x
  3. Step 3: Cross multiply
    2,829.50x = 4,243.05 × 1,074.20
  4. Step 4: Simplify right side
    2,829.50x = 4,557,884.31
  5. Step 5: Solve for x
    x = 4,557,884.31/2,829.50
  6. Step 6: Final answer
    x = 1,610.84

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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.