Home / 5,416.89-8,125.62-1,719.41

Finding the Fourth Proportional to 5,416.89, 8,125.62 and 1,719.41

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Solution

The fourth proportional to 5,416.89, 8,125.62 and 1,719.41 is: 2,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.89 : 8,125.62 = 1,719.41 : x
  2. Step 2: Convert to fraction form
    5,416.89/8,125.62 = 1,719.41/x
  3. Step 3: Cross multiply
    5,416.89x = 8,125.62 × 1,719.41
  4. Step 4: Simplify right side
    5,416.89x = 13,971,231.66
  5. Step 5: Solve for x
    x = 13,971,231.66/5,416.89
  6. Step 6: Final answer
    x = 2,579.20

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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.