Home / 5,416.92-8,125.41-1,719.15

Finding the Fourth Proportional to 5,416.92, 8,125.41 and 1,719.15

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Solution

The fourth proportional to 5,416.92, 8,125.41 and 1,719.15 is: 2,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.92 : 8,125.41 = 1,719.15 : x
  2. Step 2: Convert to fraction form
    5,416.92/8,125.41 = 1,719.15/x
  3. Step 3: Cross multiply
    5,416.92x = 8,125.41 × 1,719.15
  4. Step 4: Simplify right side
    5,416.92x = 13,968,798.60
  5. Step 5: Solve for x
    x = 13,968,798.60/5,416.92
  6. Step 6: Final answer
    x = 2,578.73

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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.