Home / 5,630.75-8,441.55-2,118.80

Finding the Fourth Proportional to 5,630.75, 8,441.55 and 2,118.80

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Solution

The fourth proportional to 5,630.75, 8,441.55 and 2,118.80 is: 3,176.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.75 : 8,441.55 = 2,118.80 : x
  2. Step 2: Convert to fraction form
    5,630.75/8,441.55 = 2,118.80/x
  3. Step 3: Cross multiply
    5,630.75x = 8,441.55 × 2,118.80
  4. Step 4: Simplify right side
    5,630.75x = 17,885,956.14
  5. Step 5: Solve for x
    x = 17,885,956.14/5,630.75
  6. Step 6: Final answer
    x = 3,176.48

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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.