Home / 5,401.13-8,102.43-1,890.62

Finding the Fourth Proportional to 5,401.13, 8,102.43 and 1,890.62

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Solution

The fourth proportional to 5,401.13, 8,102.43 and 1,890.62 is: 2,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.13 : 8,102.43 = 1,890.62 : x
  2. Step 2: Convert to fraction form
    5,401.13/8,102.43 = 1,890.62/x
  3. Step 3: Cross multiply
    5,401.13x = 8,102.43 × 1,890.62
  4. Step 4: Simplify right side
    5,401.13x = 15,318,575.69
  5. Step 5: Solve for x
    x = 15,318,575.69/5,401.13
  6. Step 6: Final answer
    x = 2,836.18

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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.