Home / 6,486.30-9,730.62-2,103.84

Finding the Fourth Proportional to 6,486.30, 9,730.62 and 2,103.84

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Solution

The fourth proportional to 6,486.30, 9,730.62 and 2,103.84 is: 3,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.30 : 9,730.62 = 2,103.84 : x
  2. Step 2: Convert to fraction form
    6,486.30/9,730.62 = 2,103.84/x
  3. Step 3: Cross multiply
    6,486.30x = 9,730.62 × 2,103.84
  4. Step 4: Simplify right side
    6,486.30x = 20,471,667.58
  5. Step 5: Solve for x
    x = 20,471,667.58/6,486.30
  6. Step 6: Final answer
    x = 3,156.14

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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.