Home / 5,429.76-8,146.08-2,309.88

Finding the Fourth Proportional to 5,429.76, 8,146.08 and 2,309.88

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Solution

The fourth proportional to 5,429.76, 8,146.08 and 2,309.88 is: 3,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.76 : 8,146.08 = 2,309.88 : x
  2. Step 2: Convert to fraction form
    5,429.76/8,146.08 = 2,309.88/x
  3. Step 3: Cross multiply
    5,429.76x = 8,146.08 × 2,309.88
  4. Step 4: Simplify right side
    5,429.76x = 18,816,467.27
  5. Step 5: Solve for x
    x = 18,816,467.27/5,429.76
  6. Step 6: Final answer
    x = 3,465.43

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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.