Home / 5,517.72-8,278.02-1,621.98

Finding the Fourth Proportional to 5,517.72, 8,278.02 and 1,621.98

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Solution

The fourth proportional to 5,517.72, 8,278.02 and 1,621.98 is: 2,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.72 : 8,278.02 = 1,621.98 : x
  2. Step 2: Convert to fraction form
    5,517.72/8,278.02 = 1,621.98/x
  3. Step 3: Cross multiply
    5,517.72x = 8,278.02 × 1,621.98
  4. Step 4: Simplify right side
    5,517.72x = 13,426,782.88
  5. Step 5: Solve for x
    x = 13,426,782.88/5,517.72
  6. Step 6: Final answer
    x = 2,433.39

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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.