Home / 3,210.40-4,812.04-2,101.96

Finding the Fourth Proportional to 3,210.40, 4,812.04 and 2,101.96

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Solution

The fourth proportional to 3,210.40, 4,812.04 and 2,101.96 is: 3,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.40 : 4,812.04 = 2,101.96 : x
  2. Step 2: Convert to fraction form
    3,210.40/4,812.04 = 2,101.96/x
  3. Step 3: Cross multiply
    3,210.40x = 4,812.04 × 2,101.96
  4. Step 4: Simplify right side
    3,210.40x = 10,114,715.60
  5. Step 5: Solve for x
    x = 10,114,715.60/3,210.40
  6. Step 6: Final answer
    x = 3,150.61

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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.