Home / 4,207.91-6,309.63-2,099.21

Finding the Fourth Proportional to 4,207.91, 6,309.63 and 2,099.21

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Solution

The fourth proportional to 4,207.91, 6,309.63 and 2,099.21 is: 3,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.91 : 6,309.63 = 2,099.21 : x
  2. Step 2: Convert to fraction form
    4,207.91/6,309.63 = 2,099.21/x
  3. Step 3: Cross multiply
    4,207.91x = 6,309.63 × 2,099.21
  4. Step 4: Simplify right side
    4,207.91x = 13,245,206.84
  5. Step 5: Solve for x
    x = 13,245,206.84/4,207.91
  6. Step 6: Final answer
    x = 3,147.70

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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.