Home / 6,213-9,311.90-2,921.72

Finding the Fourth Proportional to 6,213, 9,311.90 and 2,921.72

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Solution

The fourth proportional to 6,213, 9,311.90 and 2,921.72 is: 4,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,213 : 9,311.90 = 2,921.72 : x
  2. Step 2: Convert to fraction form
    6,213/9,311.90 = 2,921.72/x
  3. Step 3: Cross multiply
    6,213x = 9,311.90 × 2,921.72
  4. Step 4: Simplify right side
    6,213x = 27,206,764.47
  5. Step 5: Solve for x
    x = 27,206,764.47/6,213
  6. Step 6: Final answer
    x = 4,379.01

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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.