Home / 4,989.79-7,477.66-3,889.27

Finding the Fourth Proportional to 4,989.79, 7,477.66 and 3,889.27

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Solution

The fourth proportional to 4,989.79, 7,477.66 and 3,889.27 is: 5,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.79 : 7,477.66 = 3,889.27 : x
  2. Step 2: Convert to fraction form
    4,989.79/7,477.66 = 3,889.27/x
  3. Step 3: Cross multiply
    4,989.79x = 7,477.66 × 3,889.27
  4. Step 4: Simplify right side
    4,989.79x = 29,082,638.71
  5. Step 5: Solve for x
    x = 29,082,638.71/4,989.79
  6. Step 6: Final answer
    x = 5,828.43

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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.