Home / 5,490.24-8,239.98-2,205.72

Finding the Fourth Proportional to 5,490.24, 8,239.98 and 2,205.72

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Solution

The fourth proportional to 5,490.24, 8,239.98 and 2,205.72 is: 3,310.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.24 : 8,239.98 = 2,205.72 : x
  2. Step 2: Convert to fraction form
    5,490.24/8,239.98 = 2,205.72/x
  3. Step 3: Cross multiply
    5,490.24x = 8,239.98 × 2,205.72
  4. Step 4: Simplify right side
    5,490.24x = 18,175,088.69
  5. Step 5: Solve for x
    x = 18,175,088.69/5,490.24
  6. Step 6: Final answer
    x = 3,310.44

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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.