Home / 4,300.80-6,451.92-2,109.28

Finding the Fourth Proportional to 4,300.80, 6,451.92 and 2,109.28

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Solution

The fourth proportional to 4,300.80, 6,451.92 and 2,109.28 is: 3,164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,300.80 : 6,451.92 = 2,109.28 : x
  2. Step 2: Convert to fraction form
    4,300.80/6,451.92 = 2,109.28/x
  3. Step 3: Cross multiply
    4,300.80x = 6,451.92 × 2,109.28
  4. Step 4: Simplify right side
    4,300.80x = 13,608,905.82
  5. Step 5: Solve for x
    x = 13,608,905.82/4,300.80
  6. Step 6: Final answer
    x = 3,164.27

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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.