Home / 3,102.26-4,650.96-2,125.40

Finding the Fourth Proportional to 3,102.26, 4,650.96 and 2,125.40

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Solution

The fourth proportional to 3,102.26, 4,650.96 and 2,125.40 is: 3,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.26 : 4,650.96 = 2,125.40 : x
  2. Step 2: Convert to fraction form
    3,102.26/4,650.96 = 2,125.40/x
  3. Step 3: Cross multiply
    3,102.26x = 4,650.96 × 2,125.40
  4. Step 4: Simplify right side
    3,102.26x = 9,885,162.01
  5. Step 5: Solve for x
    x = 9,885,162.01/3,102.26
  6. Step 6: Final answer
    x = 3,186.44

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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.