Home / 5,454.18-8,181.12-1,558.56

Finding the Fourth Proportional to 5,454.18, 8,181.12 and 1,558.56

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Solution

The fourth proportional to 5,454.18, 8,181.12 and 1,558.56 is: 2,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.18 : 8,181.12 = 1,558.56 : x
  2. Step 2: Convert to fraction form
    5,454.18/8,181.12 = 1,558.56/x
  3. Step 3: Cross multiply
    5,454.18x = 8,181.12 × 1,558.56
  4. Step 4: Simplify right side
    5,454.18x = 12,750,766.39
  5. Step 5: Solve for x
    x = 12,750,766.39/5,454.18
  6. Step 6: Final answer
    x = 2,337.80

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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.