Home / 5,404.19-8,108.40-2,116.72

Finding the Fourth Proportional to 5,404.19, 8,108.40 and 2,116.72

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Solution

The fourth proportional to 5,404.19, 8,108.40 and 2,116.72 is: 3,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404.19 : 8,108.40 = 2,116.72 : x
  2. Step 2: Convert to fraction form
    5,404.19/8,108.40 = 2,116.72/x
  3. Step 3: Cross multiply
    5,404.19x = 8,108.40 × 2,116.72
  4. Step 4: Simplify right side
    5,404.19x = 17,163,171.91
  5. Step 5: Solve for x
    x = 17,163,171.91/5,404.19
  6. Step 6: Final answer
    x = 3,175.90

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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.