Home / 5,488.84-8,230.96-3,405.72

Finding the Fourth Proportional to 5,488.84, 8,230.96 and 3,405.72

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Solution

The fourth proportional to 5,488.84, 8,230.96 and 3,405.72 is: 5,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.84 : 8,230.96 = 3,405.72 : x
  2. Step 2: Convert to fraction form
    5,488.84/8,230.96 = 3,405.72/x
  3. Step 3: Cross multiply
    5,488.84x = 8,230.96 × 3,405.72
  4. Step 4: Simplify right side
    5,488.84x = 28,032,345.09
  5. Step 5: Solve for x
    x = 28,032,345.09/5,488.84
  6. Step 6: Final answer
    x = 5,107.15

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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.