Home / 5,490.50-8,240.03-2,205.74

Finding the Fourth Proportional to 5,490.50, 8,240.03 and 2,205.74

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Solution

The fourth proportional to 5,490.50, 8,240.03 and 2,205.74 is: 3,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.50 : 8,240.03 = 2,205.74 : x
  2. Step 2: Convert to fraction form
    5,490.50/8,240.03 = 2,205.74/x
  3. Step 3: Cross multiply
    5,490.50x = 8,240.03 × 2,205.74
  4. Step 4: Simplify right side
    5,490.50x = 18,175,311.54
  5. Step 5: Solve for x
    x = 18,175,311.54/5,490.50
  6. Step 6: Final answer
    x = 3,310.32

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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.