Home / 5,299.85-7,926.46-3,989.77

Finding the Fourth Proportional to 5,299.85, 7,926.46 and 3,989.77

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Solution

The fourth proportional to 5,299.85, 7,926.46 and 3,989.77 is: 5,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.85 : 7,926.46 = 3,989.77 : x
  2. Step 2: Convert to fraction form
    5,299.85/7,926.46 = 3,989.77/x
  3. Step 3: Cross multiply
    5,299.85x = 7,926.46 × 3,989.77
  4. Step 4: Simplify right side
    5,299.85x = 31,624,767.11
  5. Step 5: Solve for x
    x = 31,624,767.11/5,299.85
  6. Step 6: Final answer
    x = 5,967.11

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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.