Home / 5,716-8,579.76-4,160.80

Finding the Fourth Proportional to 5,716, 8,579.76 and 4,160.80

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Solution

The fourth proportional to 5,716, 8,579.76 and 4,160.80 is: 6,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716 : 8,579.76 = 4,160.80 : x
  2. Step 2: Convert to fraction form
    5,716/8,579.76 = 4,160.80/x
  3. Step 3: Cross multiply
    5,716x = 8,579.76 × 4,160.80
  4. Step 4: Simplify right side
    5,716x = 35,698,665.41
  5. Step 5: Solve for x
    x = 35,698,665.41/5,716
  6. Step 6: Final answer
    x = 6,245.39

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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.