Home / 6,628.43-9,938.63-3,119.18

Finding the Fourth Proportional to 6,628.43, 9,938.63 and 3,119.18

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Solution

The fourth proportional to 6,628.43, 9,938.63 and 3,119.18 is: 4,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.43 : 9,938.63 = 3,119.18 : x
  2. Step 2: Convert to fraction form
    6,628.43/9,938.63 = 3,119.18/x
  3. Step 3: Cross multiply
    6,628.43x = 9,938.63 × 3,119.18
  4. Step 4: Simplify right side
    6,628.43x = 31,000,334.03
  5. Step 5: Solve for x
    x = 31,000,334.03/6,628.43
  6. Step 6: Final answer
    x = 4,676.87

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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.