Home / 5,218.10-7,825.21-2,097.05

Finding the Fourth Proportional to 5,218.10, 7,825.21 and 2,097.05

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Solution

The fourth proportional to 5,218.10, 7,825.21 and 2,097.05 is: 3,144.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.10 : 7,825.21 = 2,097.05 : x
  2. Step 2: Convert to fraction form
    5,218.10/7,825.21 = 2,097.05/x
  3. Step 3: Cross multiply
    5,218.10x = 7,825.21 × 2,097.05
  4. Step 4: Simplify right side
    5,218.10x = 16,409,846.15
  5. Step 5: Solve for x
    x = 16,409,846.15/5,218.10
  6. Step 6: Final answer
    x = 3,144.79

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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.