Home / 3,717.12-5,127.66-2,320.68

Finding the Fourth Proportional to 3,717.12, 5,127.66 and 2,320.68

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Solution

The fourth proportional to 3,717.12, 5,127.66 and 2,320.68 is: 3,201.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.12 : 5,127.66 = 2,320.68 : x
  2. Step 2: Convert to fraction form
    3,717.12/5,127.66 = 2,320.68/x
  3. Step 3: Cross multiply
    3,717.12x = 5,127.66 × 2,320.68
  4. Step 4: Simplify right side
    3,717.12x = 11,899,658.01
  5. Step 5: Solve for x
    x = 11,899,658.01/3,717.12
  6. Step 6: Final answer
    x = 3,201.31

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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.