Home / 5,403-8,108.30-1,940.36

Finding the Fourth Proportional to 5,403, 8,108.30 and 1,940.36

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Solution

The fourth proportional to 5,403, 8,108.30 and 1,940.36 is: 2,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403 : 8,108.30 = 1,940.36 : x
  2. Step 2: Convert to fraction form
    5,403/8,108.30 = 1,940.36/x
  3. Step 3: Cross multiply
    5,403x = 8,108.30 × 1,940.36
  4. Step 4: Simplify right side
    5,403x = 15,733,020.99
  5. Step 5: Solve for x
    x = 15,733,020.99/5,403
  6. Step 6: Final answer
    x = 2,911.90

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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.