Home / 3,189.04-4,400.76-1,791.76

Finding the Fourth Proportional to 3,189.04, 4,400.76 and 1,791.76

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Solution

The fourth proportional to 3,189.04, 4,400.76 and 1,791.76 is: 2,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.04 : 4,400.76 = 1,791.76 : x
  2. Step 2: Convert to fraction form
    3,189.04/4,400.76 = 1,791.76/x
  3. Step 3: Cross multiply
    3,189.04x = 4,400.76 × 1,791.76
  4. Step 4: Simplify right side
    3,189.04x = 7,885,105.74
  5. Step 5: Solve for x
    x = 7,885,105.74/3,189.04
  6. Step 6: Final answer
    x = 2,472.56

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1.5x scale

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.