Home / 4,121.16-6,181.20-1,199.76

Finding the Fourth Proportional to 4,121.16, 6,181.20 and 1,199.76

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Solution

The fourth proportional to 4,121.16, 6,181.20 and 1,199.76 is: 1,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.16 : 6,181.20 = 1,199.76 : x
  2. Step 2: Convert to fraction form
    4,121.16/6,181.20 = 1,199.76/x
  3. Step 3: Cross multiply
    4,121.16x = 6,181.20 × 1,199.76
  4. Step 4: Simplify right side
    4,121.16x = 7,415,956.51
  5. Step 5: Solve for x
    x = 7,415,956.51/4,121.16
  6. Step 6: Final answer
    x = 1,799.48

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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.