Home / 5,268.57-7,271.47-3,144.21

Finding the Fourth Proportional to 5,268.57, 7,271.47 and 3,144.21

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Solution

The fourth proportional to 5,268.57, 7,271.47 and 3,144.21 is: 4,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.57 : 7,271.47 = 3,144.21 : x
  2. Step 2: Convert to fraction form
    5,268.57/7,271.47 = 3,144.21/x
  3. Step 3: Cross multiply
    5,268.57x = 7,271.47 × 3,144.21
  4. Step 4: Simplify right side
    5,268.57x = 22,863,028.69
  5. Step 5: Solve for x
    x = 22,863,028.69/5,268.57
  6. Step 6: Final answer
    x = 4,339.51

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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.