Home / 4,919.91-7,380.29-1,409.93

Finding the Fourth Proportional to 4,919.91, 7,380.29 and 1,409.93

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Solution

The fourth proportional to 4,919.91, 7,380.29 and 1,409.93 is: 2,115.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.91 : 7,380.29 = 1,409.93 : x
  2. Step 2: Convert to fraction form
    4,919.91/7,380.29 = 1,409.93/x
  3. Step 3: Cross multiply
    4,919.91x = 7,380.29 × 1,409.93
  4. Step 4: Simplify right side
    4,919.91x = 10,405,648.33
  5. Step 5: Solve for x
    x = 10,405,648.33/4,919.91
  6. Step 6: Final answer
    x = 2,115.01

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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.