Home / 3,118.16-4,302.99-1,791.79

Finding the Fourth Proportional to 3,118.16, 4,302.99 and 1,791.79

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Solution

The fourth proportional to 3,118.16, 4,302.99 and 1,791.79 is: 2,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.16 : 4,302.99 = 1,791.79 : x
  2. Step 2: Convert to fraction form
    3,118.16/4,302.99 = 1,791.79/x
  3. Step 3: Cross multiply
    3,118.16x = 4,302.99 × 1,791.79
  4. Step 4: Simplify right side
    3,118.16x = 7,710,043.69
  5. Step 5: Solve for x
    x = 7,710,043.69/3,118.16
  6. Step 6: Final answer
    x = 2,472.62

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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.