Home / 5,315.10-7,974.62-2,195.38

Finding the Fourth Proportional to 5,315.10, 7,974.62 and 2,195.38

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Solution

The fourth proportional to 5,315.10, 7,974.62 and 2,195.38 is: 3,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.10 : 7,974.62 = 2,195.38 : x
  2. Step 2: Convert to fraction form
    5,315.10/7,974.62 = 2,195.38/x
  3. Step 3: Cross multiply
    5,315.10x = 7,974.62 × 2,195.38
  4. Step 4: Simplify right side
    5,315.10x = 17,507,321.26
  5. Step 5: Solve for x
    x = 17,507,321.26/5,315.10
  6. Step 6: Final answer
    x = 3,293.88

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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.