Home / 5,429.14-8,138.51-1,729.33

Finding the Fourth Proportional to 5,429.14, 8,138.51 and 1,729.33

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Solution

The fourth proportional to 5,429.14, 8,138.51 and 1,729.33 is: 2,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.14 : 8,138.51 = 1,729.33 : x
  2. Step 2: Convert to fraction form
    5,429.14/8,138.51 = 1,729.33/x
  3. Step 3: Cross multiply
    5,429.14x = 8,138.51 × 1,729.33
  4. Step 4: Simplify right side
    5,429.14x = 14,074,146.99
  5. Step 5: Solve for x
    x = 14,074,146.99/5,429.14
  6. Step 6: Final answer
    x = 2,592.34

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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.