Home / 2,801.90-4,198.89-1,157.42

Finding the Fourth Proportional to 2,801.90, 4,198.89 and 1,157.42

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Solution

The fourth proportional to 2,801.90, 4,198.89 and 1,157.42 is: 1,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.90 : 4,198.89 = 1,157.42 : x
  2. Step 2: Convert to fraction form
    2,801.90/4,198.89 = 1,157.42/x
  3. Step 3: Cross multiply
    2,801.90x = 4,198.89 × 1,157.42
  4. Step 4: Simplify right side
    2,801.90x = 4,859,879.26
  5. Step 5: Solve for x
    x = 4,859,879.26/2,801.90
  6. Step 6: Final answer
    x = 1,734.49

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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.