Home / 5,416.85-8,125.33-1,719.11

Finding the Fourth Proportional to 5,416.85, 8,125.33 and 1,719.11

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Solution

The fourth proportional to 5,416.85, 8,125.33 and 1,719.11 is: 2,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.85 : 8,125.33 = 1,719.11 : x
  2. Step 2: Convert to fraction form
    5,416.85/8,125.33 = 1,719.11/x
  3. Step 3: Cross multiply
    5,416.85x = 8,125.33 × 1,719.11
  4. Step 4: Simplify right side
    5,416.85x = 13,968,336.06
  5. Step 5: Solve for x
    x = 13,968,336.06/5,416.85
  6. Step 6: Final answer
    x = 2,578.68

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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.