Home / 5,388.28-8,075.23-2,609.42

Finding the Fourth Proportional to 5,388.28, 8,075.23 and 2,609.42

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Solution

The fourth proportional to 5,388.28, 8,075.23 and 2,609.42 is: 3,910.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.28 : 8,075.23 = 2,609.42 : x
  2. Step 2: Convert to fraction form
    5,388.28/8,075.23 = 2,609.42/x
  3. Step 3: Cross multiply
    5,388.28x = 8,075.23 × 2,609.42
  4. Step 4: Simplify right side
    5,388.28x = 21,071,619.77
  5. Step 5: Solve for x
    x = 21,071,619.77/5,388.28
  6. Step 6: Final answer
    x = 3,910.64

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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.