Home / 3,929.58-5,899.23-3,117.96

Finding the Fourth Proportional to 3,929.58, 5,899.23 and 3,117.96

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Solution

The fourth proportional to 3,929.58, 5,899.23 and 3,117.96 is: 4,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.58 : 5,899.23 = 3,117.96 : x
  2. Step 2: Convert to fraction form
    3,929.58/5,899.23 = 3,117.96/x
  3. Step 3: Cross multiply
    3,929.58x = 5,899.23 × 3,117.96
  4. Step 4: Simplify right side
    3,929.58x = 18,393,563.17
  5. Step 5: Solve for x
    x = 18,393,563.17/3,929.58
  6. Step 6: Final answer
    x = 4,680.80

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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.