Home / 2,135.44-2,946.92-1,191.31

Finding the Fourth Proportional to 2,135.44, 2,946.92 and 1,191.31

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Solution

The fourth proportional to 2,135.44, 2,946.92 and 1,191.31 is: 1,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.44 : 2,946.92 = 1,191.31 : x
  2. Step 2: Convert to fraction form
    2,135.44/2,946.92 = 1,191.31/x
  3. Step 3: Cross multiply
    2,135.44x = 2,946.92 × 1,191.31
  4. Step 4: Simplify right side
    2,135.44x = 3,510,695.27
  5. Step 5: Solve for x
    x = 3,510,695.27/2,135.44
  6. Step 6: Final answer
    x = 1,644.01

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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.