Home / 5,490.09-8,234.46-3,239.91

Finding the Fourth Proportional to 5,490.09, 8,234.46 and 3,239.91

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Solution

The fourth proportional to 5,490.09, 8,234.46 and 3,239.91 is: 4,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.09 : 8,234.46 = 3,239.91 : x
  2. Step 2: Convert to fraction form
    5,490.09/8,234.46 = 3,239.91/x
  3. Step 3: Cross multiply
    5,490.09x = 8,234.46 × 3,239.91
  4. Step 4: Simplify right side
    5,490.09x = 26,678,909.30
  5. Step 5: Solve for x
    x = 26,678,909.30/5,490.09
  6. Step 6: Final answer
    x = 4,859.47

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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.