Home / 3,206.19-4,803.05-2,107.21

Finding the Fourth Proportional to 3,206.19, 4,803.05 and 2,107.21

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Solution

The fourth proportional to 3,206.19, 4,803.05 and 2,107.21 is: 3,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.19 : 4,803.05 = 2,107.21 : x
  2. Step 2: Convert to fraction form
    3,206.19/4,803.05 = 2,107.21/x
  3. Step 3: Cross multiply
    3,206.19x = 4,803.05 × 2,107.21
  4. Step 4: Simplify right side
    3,206.19x = 10,121,024.45
  5. Step 5: Solve for x
    x = 10,121,024.45/3,206.19
  6. Step 6: Final answer
    x = 3,156.72

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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.