Home / 5,454.48-8,176.86-3,991.62

Finding the Fourth Proportional to 5,454.48, 8,176.86 and 3,991.62

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Solution

The fourth proportional to 5,454.48, 8,176.86 and 3,991.62 is: 5,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.48 : 8,176.86 = 3,991.62 : x
  2. Step 2: Convert to fraction form
    5,454.48/8,176.86 = 3,991.62/x
  3. Step 3: Cross multiply
    5,454.48x = 8,176.86 × 3,991.62
  4. Step 4: Simplify right side
    5,454.48x = 32,638,917.91
  5. Step 5: Solve for x
    x = 32,638,917.91/5,454.48
  6. Step 6: Final answer
    x = 5,983.87

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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.