Home / 4,146.21-5,715.72-3,149.75

Finding the Fourth Proportional to 4,146.21, 5,715.72 and 3,149.75

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Solution

The fourth proportional to 4,146.21, 5,715.72 and 3,149.75 is: 4,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,146.21 : 5,715.72 = 3,149.75 : x
  2. Step 2: Convert to fraction form
    4,146.21/5,715.72 = 3,149.75/x
  3. Step 3: Cross multiply
    4,146.21x = 5,715.72 × 3,149.75
  4. Step 4: Simplify right side
    4,146.21x = 18,003,114.08
  5. Step 5: Solve for x
    x = 18,003,114.08/4,146.21
  6. Step 6: Final answer
    x = 4,342.07

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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.