Home / 5,517.30-8,273.10-1,621.20

Finding the Fourth Proportional to 5,517.30, 8,273.10 and 1,621.20

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Solution

The fourth proportional to 5,517.30, 8,273.10 and 1,621.20 is: 2,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.30 : 8,273.10 = 1,621.20 : x
  2. Step 2: Convert to fraction form
    5,517.30/8,273.10 = 1,621.20/x
  3. Step 3: Cross multiply
    5,517.30x = 8,273.10 × 1,621.20
  4. Step 4: Simplify right side
    5,517.30x = 13,412,349.72
  5. Step 5: Solve for x
    x = 13,412,349.72/5,517.30
  6. Step 6: Final answer
    x = 2,430.96

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1.5x scale

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.