Home / 5,131.92-7,082.46-2,893.80

Finding the Fourth Proportional to 5,131.92, 7,082.46 and 2,893.80

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Solution

The fourth proportional to 5,131.92, 7,082.46 and 2,893.80 is: 3,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.92 : 7,082.46 = 2,893.80 : x
  2. Step 2: Convert to fraction form
    5,131.92/7,082.46 = 2,893.80/x
  3. Step 3: Cross multiply
    5,131.92x = 7,082.46 × 2,893.80
  4. Step 4: Simplify right side
    5,131.92x = 20,495,222.75
  5. Step 5: Solve for x
    x = 20,495,222.75/5,131.92
  6. Step 6: Final answer
    x = 3,993.68

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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.