Home / 5,216.27-7,823.67-1,928.81

Finding the Fourth Proportional to 5,216.27, 7,823.67 and 1,928.81

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Solution

The fourth proportional to 5,216.27, 7,823.67 and 1,928.81 is: 2,892.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.27 : 7,823.67 = 1,928.81 : x
  2. Step 2: Convert to fraction form
    5,216.27/7,823.67 = 1,928.81/x
  3. Step 3: Cross multiply
    5,216.27x = 7,823.67 × 1,928.81
  4. Step 4: Simplify right side
    5,216.27x = 15,090,372.93
  5. Step 5: Solve for x
    x = 15,090,372.93/5,216.27
  6. Step 6: Final answer
    x = 2,892.94

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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.