Home / 1,964.60-2,945.90-1,143.04

Finding the Fourth Proportional to 1,964.60, 2,945.90 and 1,143.04

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Solution

The fourth proportional to 1,964.60, 2,945.90 and 1,143.04 is: 1,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.60 : 2,945.90 = 1,143.04 : x
  2. Step 2: Convert to fraction form
    1,964.60/2,945.90 = 1,143.04/x
  3. Step 3: Cross multiply
    1,964.60x = 2,945.90 × 1,143.04
  4. Step 4: Simplify right side
    1,964.60x = 3,367,281.54
  5. Step 5: Solve for x
    x = 3,367,281.54/1,964.60
  6. Step 6: Final answer
    x = 1,713.98

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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.