Home / 5,108.02-7,662.63-1,821.58

Finding the Fourth Proportional to 5,108.02, 7,662.63 and 1,821.58

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Solution

The fourth proportional to 5,108.02, 7,662.63 and 1,821.58 is: 2,732.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.02 : 7,662.63 = 1,821.58 : x
  2. Step 2: Convert to fraction form
    5,108.02/7,662.63 = 1,821.58/x
  3. Step 3: Cross multiply
    5,108.02x = 7,662.63 × 1,821.58
  4. Step 4: Simplify right side
    5,108.02x = 13,958,093.56
  5. Step 5: Solve for x
    x = 13,958,093.56/5,108.02
  6. Step 6: Final answer
    x = 2,732.58

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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.