Home / 5,488.10-8,231.68-1,539.05

Finding the Fourth Proportional to 5,488.10, 8,231.68 and 1,539.05

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Solution

The fourth proportional to 5,488.10, 8,231.68 and 1,539.05 is: 2,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.10 : 8,231.68 = 1,539.05 : x
  2. Step 2: Convert to fraction form
    5,488.10/8,231.68 = 1,539.05/x
  3. Step 3: Cross multiply
    5,488.10x = 8,231.68 × 1,539.05
  4. Step 4: Simplify right side
    5,488.10x = 12,668,919.21
  5. Step 5: Solve for x
    x = 12,668,919.21/5,488.10
  6. Step 6: Final answer
    x = 2,308.43

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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.