Home / 5,454.20-8,181.24-1,558.58

Finding the Fourth Proportional to 5,454.20, 8,181.24 and 1,558.58

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Solution

The fourth proportional to 5,454.20, 8,181.24 and 1,558.58 is: 2,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.20 : 8,181.24 = 1,558.58 : x
  2. Step 2: Convert to fraction form
    5,454.20/8,181.24 = 1,558.58/x
  3. Step 3: Cross multiply
    5,454.20x = 8,181.24 × 1,558.58
  4. Step 4: Simplify right side
    5,454.20x = 12,751,117.04
  5. Step 5: Solve for x
    x = 12,751,117.04/5,454.20
  6. Step 6: Final answer
    x = 2,337.85

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1.5x scale

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.