Home / 6,311.90-8,711.26-3,624.18

Finding the Fourth Proportional to 6,311.90, 8,711.26 and 3,624.18

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Solution

The fourth proportional to 6,311.90, 8,711.26 and 3,624.18 is: 5,001.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.90 : 8,711.26 = 3,624.18 : x
  2. Step 2: Convert to fraction form
    6,311.90/8,711.26 = 3,624.18/x
  3. Step 3: Cross multiply
    6,311.90x = 8,711.26 × 3,624.18
  4. Step 4: Simplify right side
    6,311.90x = 31,571,174.27
  5. Step 5: Solve for x
    x = 31,571,174.27/6,311.90
  6. Step 6: Final answer
    x = 5,001.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.