Home / 5,890.20-8,835.30-4,939.80

Finding the Fourth Proportional to 5,890.20, 8,835.30 and 4,939.80

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Solution

The fourth proportional to 5,890.20, 8,835.30 and 4,939.80 is: 7,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.20 : 8,835.30 = 4,939.80 : x
  2. Step 2: Convert to fraction form
    5,890.20/8,835.30 = 4,939.80/x
  3. Step 3: Cross multiply
    5,890.20x = 8,835.30 × 4,939.80
  4. Step 4: Simplify right side
    5,890.20x = 43,644,614.94
  5. Step 5: Solve for x
    x = 43,644,614.94/5,890.20
  6. Step 6: Final answer
    x = 7,409.70

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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.