Home / 5,728.45-8,589.96-2,220.10

Finding the Fourth Proportional to 5,728.45, 8,589.96 and 2,220.10

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Solution

The fourth proportional to 5,728.45, 8,589.96 and 2,220.10 is: 3,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.45 : 8,589.96 = 2,220.10 : x
  2. Step 2: Convert to fraction form
    5,728.45/8,589.96 = 2,220.10/x
  3. Step 3: Cross multiply
    5,728.45x = 8,589.96 × 2,220.10
  4. Step 4: Simplify right side
    5,728.45x = 19,070,570.20
  5. Step 5: Solve for x
    x = 19,070,570.20/5,728.45
  6. Step 6: Final answer
    x = 3,329.10

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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.