Home / 3,118.05-4,302.77-1,791.68

Finding the Fourth Proportional to 3,118.05, 4,302.77 and 1,791.68

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Solution

The fourth proportional to 3,118.05, 4,302.77 and 1,791.68 is: 2,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.05 : 4,302.77 = 1,791.68 : x
  2. Step 2: Convert to fraction form
    3,118.05/4,302.77 = 1,791.68/x
  3. Step 3: Cross multiply
    3,118.05x = 4,302.77 × 1,791.68
  4. Step 4: Simplify right side
    3,118.05x = 7,709,156.48
  5. Step 5: Solve for x
    x = 7,709,156.48/3,118.05
  6. Step 6: Final answer
    x = 2,472.43

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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.