Home / 4,090.69-6,138.47-2,143.99

Finding the Fourth Proportional to 4,090.69, 6,138.47 and 2,143.99

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Solution

The fourth proportional to 4,090.69, 6,138.47 and 2,143.99 is: 3,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.69 : 6,138.47 = 2,143.99 : x
  2. Step 2: Convert to fraction form
    4,090.69/6,138.47 = 2,143.99/x
  3. Step 3: Cross multiply
    4,090.69x = 6,138.47 × 2,143.99
  4. Step 4: Simplify right side
    4,090.69x = 13,160,818.30
  5. Step 5: Solve for x
    x = 13,160,818.30/4,090.69
  6. Step 6: Final answer
    x = 3,217.26

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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.