Home / 7,148.40-10,723.64-2,218.44

Finding the Fourth Proportional to 7,148.40, 10,723.64 and 2,218.44

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Solution

The fourth proportional to 7,148.40, 10,723.64 and 2,218.44 is: 3,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.40 : 10,723.64 = 2,218.44 : x
  2. Step 2: Convert to fraction form
    7,148.40/10,723.64 = 2,218.44/x
  3. Step 3: Cross multiply
    7,148.40x = 10,723.64 × 2,218.44
  4. Step 4: Simplify right side
    7,148.40x = 23,789,700.62
  5. Step 5: Solve for x
    x = 23,789,700.62/7,148.40
  6. Step 6: Final answer
    x = 3,327.98

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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.