Home / 5,518.68-8,280.06-2,558.54

Finding the Fourth Proportional to 5,518.68, 8,280.06 and 2,558.54

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Solution

The fourth proportional to 5,518.68, 8,280.06 and 2,558.54 is: 3,838.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.68 : 8,280.06 = 2,558.54 : x
  2. Step 2: Convert to fraction form
    5,518.68/8,280.06 = 2,558.54/x
  3. Step 3: Cross multiply
    5,518.68x = 8,280.06 × 2,558.54
  4. Step 4: Simplify right side
    5,518.68x = 21,184,823.31
  5. Step 5: Solve for x
    x = 21,184,823.31/5,518.68
  6. Step 6: Final answer
    x = 3,838.75

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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.