Home / 2,142.11-3,210.62-1,043.96

Finding the Fourth Proportional to 2,142.11, 3,210.62 and 1,043.96

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Solution

The fourth proportional to 2,142.11, 3,210.62 and 1,043.96 is: 1,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.11 : 3,210.62 = 1,043.96 : x
  2. Step 2: Convert to fraction form
    2,142.11/3,210.62 = 1,043.96/x
  3. Step 3: Cross multiply
    2,142.11x = 3,210.62 × 1,043.96
  4. Step 4: Simplify right side
    2,142.11x = 3,351,737.58
  5. Step 5: Solve for x
    x = 3,351,737.58/2,142.11
  6. Step 6: Final answer
    x = 1,564.69

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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.