Home / 4,876.96-7,298.43-3,989.20

Finding the Fourth Proportional to 4,876.96, 7,298.43 and 3,989.20

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Solution

The fourth proportional to 4,876.96, 7,298.43 and 3,989.20 is: 5,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.96 : 7,298.43 = 3,989.20 : x
  2. Step 2: Convert to fraction form
    4,876.96/7,298.43 = 3,989.20/x
  3. Step 3: Cross multiply
    4,876.96x = 7,298.43 × 3,989.20
  4. Step 4: Simplify right side
    4,876.96x = 29,114,896.96
  5. Step 5: Solve for x
    x = 29,114,896.96/4,876.96
  6. Step 6: Final answer
    x = 5,969.89

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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.