Home / 5,210.11-7,815.20-2,132.11

Finding the Fourth Proportional to 5,210.11, 7,815.20 and 2,132.11

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Solution

The fourth proportional to 5,210.11, 7,815.20 and 2,132.11 is: 3,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.11 : 7,815.20 = 2,132.11 : x
  2. Step 2: Convert to fraction form
    5,210.11/7,815.20 = 2,132.11/x
  3. Step 3: Cross multiply
    5,210.11x = 7,815.20 × 2,132.11
  4. Step 4: Simplify right side
    5,210.11x = 16,662,866.07
  5. Step 5: Solve for x
    x = 16,662,866.07/5,210.11
  6. Step 6: Final answer
    x = 3,198.18

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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.