Home / 2,142.05-2,955.99-1,197.92

Finding the Fourth Proportional to 2,142.05, 2,955.99 and 1,197.92

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Solution

The fourth proportional to 2,142.05, 2,955.99 and 1,197.92 is: 1,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.05 : 2,955.99 = 1,197.92 : x
  2. Step 2: Convert to fraction form
    2,142.05/2,955.99 = 1,197.92/x
  3. Step 3: Cross multiply
    2,142.05x = 2,955.99 × 1,197.92
  4. Step 4: Simplify right side
    2,142.05x = 3,541,039.54
  5. Step 5: Solve for x
    x = 3,541,039.54/2,142.05
  6. Step 6: Final answer
    x = 1,653.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.