Home / 5,416.91-8,125.30-1,719.04

Finding the Fourth Proportional to 5,416.91, 8,125.30 and 1,719.04

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Solution

The fourth proportional to 5,416.91, 8,125.30 and 1,719.04 is: 2,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.91 : 8,125.30 = 1,719.04 : x
  2. Step 2: Convert to fraction form
    5,416.91/8,125.30 = 1,719.04/x
  3. Step 3: Cross multiply
    5,416.91x = 8,125.30 × 1,719.04
  4. Step 4: Simplify right side
    5,416.91x = 13,967,715.71
  5. Step 5: Solve for x
    x = 13,967,715.71/5,416.91
  6. Step 6: Final answer
    x = 2,578.54

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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.