Home / 1,942.02-2,911.34-1,326.92

Finding the Fourth Proportional to 1,942.02, 2,911.34 and 1,326.92

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Solution

The fourth proportional to 1,942.02, 2,911.34 and 1,326.92 is: 1,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.02 : 2,911.34 = 1,326.92 : x
  2. Step 2: Convert to fraction form
    1,942.02/2,911.34 = 1,326.92/x
  3. Step 3: Cross multiply
    1,942.02x = 2,911.34 × 1,326.92
  4. Step 4: Simplify right side
    1,942.02x = 3,863,115.27
  5. Step 5: Solve for x
    x = 3,863,115.27/1,942.02
  6. Step 6: Final answer
    x = 1,989.23

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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.