Home / 5,429.29-8,145.13-3,090.39

Finding the Fourth Proportional to 5,429.29, 8,145.13 and 3,090.39

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Solution

The fourth proportional to 5,429.29, 8,145.13 and 3,090.39 is: 4,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.29 : 8,145.13 = 3,090.39 : x
  2. Step 2: Convert to fraction form
    5,429.29/8,145.13 = 3,090.39/x
  3. Step 3: Cross multiply
    5,429.29x = 8,145.13 × 3,090.39
  4. Step 4: Simplify right side
    5,429.29x = 25,171,612.85
  5. Step 5: Solve for x
    x = 25,171,612.85/5,429.29
  6. Step 6: Final answer
    x = 4,636.27

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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.