Home / 5,454.86-8,181.38-1,558.32

Finding the Fourth Proportional to 5,454.86, 8,181.38 and 1,558.32

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Solution

The fourth proportional to 5,454.86, 8,181.38 and 1,558.32 is: 2,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.86 : 8,181.38 = 1,558.32 : x
  2. Step 2: Convert to fraction form
    5,454.86/8,181.38 = 1,558.32/x
  3. Step 3: Cross multiply
    5,454.86x = 8,181.38 × 1,558.32
  4. Step 4: Simplify right side
    5,454.86x = 12,749,208.08
  5. Step 5: Solve for x
    x = 12,749,208.08/5,454.86
  6. Step 6: Final answer
    x = 2,337.22

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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.