Home / 5,390.94-8,084.78-2,103.14

Finding the Fourth Proportional to 5,390.94, 8,084.78 and 2,103.14

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Solution

The fourth proportional to 5,390.94, 8,084.78 and 2,103.14 is: 3,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.94 : 8,084.78 = 2,103.14 : x
  2. Step 2: Convert to fraction form
    5,390.94/8,084.78 = 2,103.14/x
  3. Step 3: Cross multiply
    5,390.94x = 8,084.78 × 2,103.14
  4. Step 4: Simplify right side
    5,390.94x = 17,003,424.21
  5. Step 5: Solve for x
    x = 17,003,424.21/5,390.94
  6. Step 6: Final answer
    x = 3,154.07

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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.