Home / 5,619.03-8,429.45-2,109.31

Finding the Fourth Proportional to 5,619.03, 8,429.45 and 2,109.31

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Solution

The fourth proportional to 5,619.03, 8,429.45 and 2,109.31 is: 3,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.03 : 8,429.45 = 2,109.31 : x
  2. Step 2: Convert to fraction form
    5,619.03/8,429.45 = 2,109.31/x
  3. Step 3: Cross multiply
    5,619.03x = 8,429.45 × 2,109.31
  4. Step 4: Simplify right side
    5,619.03x = 17,780,302.11
  5. Step 5: Solve for x
    x = 17,780,302.11/5,619.03
  6. Step 6: Final answer
    x = 3,164.30

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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.