Home / 5,619.36-8,424.99-1,721.64

Finding the Fourth Proportional to 5,619.36, 8,424.99 and 1,721.64

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Solution

The fourth proportional to 5,619.36, 8,424.99 and 1,721.64 is: 2,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.36 : 8,424.99 = 1,721.64 : x
  2. Step 2: Convert to fraction form
    5,619.36/8,424.99 = 1,721.64/x
  3. Step 3: Cross multiply
    5,619.36x = 8,424.99 × 1,721.64
  4. Step 4: Simplify right side
    5,619.36x = 14,504,799.78
  5. Step 5: Solve for x
    x = 14,504,799.78/5,619.36
  6. Step 6: Final answer
    x = 2,581.22

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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.