Home / 5,198.31-7,173.77-3,103.65

Finding the Fourth Proportional to 5,198.31, 7,173.77 and 3,103.65

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Solution

The fourth proportional to 5,198.31, 7,173.77 and 3,103.65 is: 4,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.31 : 7,173.77 = 3,103.65 : x
  2. Step 2: Convert to fraction form
    5,198.31/7,173.77 = 3,103.65/x
  3. Step 3: Cross multiply
    5,198.31x = 7,173.77 × 3,103.65
  4. Step 4: Simplify right side
    5,198.31x = 22,264,855.74
  5. Step 5: Solve for x
    x = 22,264,855.74/5,198.31
  6. Step 6: Final answer
    x = 4,283.10

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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.