Home / 5,086.20-7,622-2,890.28

Finding the Fourth Proportional to 5,086.20, 7,622 and 2,890.28

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Solution

The fourth proportional to 5,086.20, 7,622 and 2,890.28 is: 4,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.20 : 7,622 = 2,890.28 : x
  2. Step 2: Convert to fraction form
    5,086.20/7,622 = 2,890.28/x
  3. Step 3: Cross multiply
    5,086.20x = 7,622 × 2,890.28
  4. Step 4: Simplify right side
    5,086.20x = 22,029,714.16
  5. Step 5: Solve for x
    x = 22,029,714.16/5,086.20
  6. Step 6: Final answer
    x = 4,331.27

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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.