Home / 5,329.96-8,000.70-3,869.80

Finding the Fourth Proportional to 5,329.96, 8,000.70 and 3,869.80

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Solution

The fourth proportional to 5,329.96, 8,000.70 and 3,869.80 is: 5,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.96 : 8,000.70 = 3,869.80 : x
  2. Step 2: Convert to fraction form
    5,329.96/8,000.70 = 3,869.80/x
  3. Step 3: Cross multiply
    5,329.96x = 8,000.70 × 3,869.80
  4. Step 4: Simplify right side
    5,329.96x = 30,961,108.86
  5. Step 5: Solve for x
    x = 30,961,108.86/5,329.96
  6. Step 6: Final answer
    x = 5,808.88

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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.