Home / 2,911.08-4,366.55-719.83

Finding the Fourth Proportional to 2,911.08, 4,366.55 and 719.83

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Solution

The fourth proportional to 2,911.08, 4,366.55 and 719.83 is: 1,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.08 : 4,366.55 = 719.83 : x
  2. Step 2: Convert to fraction form
    2,911.08/4,366.55 = 719.83/x
  3. Step 3: Cross multiply
    2,911.08x = 4,366.55 × 719.83
  4. Step 4: Simplify right side
    2,911.08x = 3,143,173.69
  5. Step 5: Solve for x
    x = 3,143,173.69/2,911.08
  6. Step 6: Final answer
    x = 1,079.73

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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.