Home / 5,198.20-7,173.51-2,808.17

Finding the Fourth Proportional to 5,198.20, 7,173.51 and 2,808.17

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Solution

The fourth proportional to 5,198.20, 7,173.51 and 2,808.17 is: 3,875.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.20 : 7,173.51 = 2,808.17 : x
  2. Step 2: Convert to fraction form
    5,198.20/7,173.51 = 2,808.17/x
  3. Step 3: Cross multiply
    5,198.20x = 7,173.51 × 2,808.17
  4. Step 4: Simplify right side
    5,198.20x = 20,144,424.66
  5. Step 5: Solve for x
    x = 20,144,424.66/5,198.20
  6. Step 6: Final answer
    x = 3,875.27

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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.