Home / 4,311.81-6,468.87-1,538.77

Finding the Fourth Proportional to 4,311.81, 6,468.87 and 1,538.77

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Solution

The fourth proportional to 4,311.81, 6,468.87 and 1,538.77 is: 2,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.81 : 6,468.87 = 1,538.77 : x
  2. Step 2: Convert to fraction form
    4,311.81/6,468.87 = 1,538.77/x
  3. Step 3: Cross multiply
    4,311.81x = 6,468.87 × 1,538.77
  4. Step 4: Simplify right side
    4,311.81x = 9,954,103.09
  5. Step 5: Solve for x
    x = 9,954,103.09/4,311.81
  6. Step 6: Final answer
    x = 2,308.57

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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.