Home / 5,509.41-8,263.32-1,811.79

Finding the Fourth Proportional to 5,509.41, 8,263.32 and 1,811.79

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Solution

The fourth proportional to 5,509.41, 8,263.32 and 1,811.79 is: 2,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.41 : 8,263.32 = 1,811.79 : x
  2. Step 2: Convert to fraction form
    5,509.41/8,263.32 = 1,811.79/x
  3. Step 3: Cross multiply
    5,509.41x = 8,263.32 × 1,811.79
  4. Step 4: Simplify right side
    5,509.41x = 14,971,400.54
  5. Step 5: Solve for x
    x = 14,971,400.54/5,509.41
  6. Step 6: Final answer
    x = 2,717.42

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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.