Home / 5,181.92-7,776.11-2,103.92

Finding the Fourth Proportional to 5,181.92, 7,776.11 and 2,103.92

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Solution

The fourth proportional to 5,181.92, 7,776.11 and 2,103.92 is: 3,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.92 : 7,776.11 = 2,103.92 : x
  2. Step 2: Convert to fraction form
    5,181.92/7,776.11 = 2,103.92/x
  3. Step 3: Cross multiply
    5,181.92x = 7,776.11 × 2,103.92
  4. Step 4: Simplify right side
    5,181.92x = 16,360,313.35
  5. Step 5: Solve for x
    x = 16,360,313.35/5,181.92
  6. Step 6: Final answer
    x = 3,157.19

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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.