Home / 5,540.61-8,310.83-2,621.01

Finding the Fourth Proportional to 5,540.61, 8,310.83 and 2,621.01

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Solution

The fourth proportional to 5,540.61, 8,310.83 and 2,621.01 is: 3,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.61 : 8,310.83 = 2,621.01 : x
  2. Step 2: Convert to fraction form
    5,540.61/8,310.83 = 2,621.01/x
  3. Step 3: Cross multiply
    5,540.61x = 8,310.83 × 2,621.01
  4. Step 4: Simplify right side
    5,540.61x = 21,782,755.43
  5. Step 5: Solve for x
    x = 21,782,755.43/5,540.61
  6. Step 6: Final answer
    x = 3,931.47

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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.