Home / 5,102.85-7,654.28-1,814.85

Finding the Fourth Proportional to 5,102.85, 7,654.28 and 1,814.85

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Solution

The fourth proportional to 5,102.85, 7,654.28 and 1,814.85 is: 2,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.85 : 7,654.28 = 1,814.85 : x
  2. Step 2: Convert to fraction form
    5,102.85/7,654.28 = 1,814.85/x
  3. Step 3: Cross multiply
    5,102.85x = 7,654.28 × 1,814.85
  4. Step 4: Simplify right side
    5,102.85x = 13,891,360.98
  5. Step 5: Solve for x
    x = 13,891,360.98/5,102.85
  6. Step 6: Final answer
    x = 2,722.28

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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.