Home / 3,717.17-5,129.33-2,145.77

Finding the Fourth Proportional to 3,717.17, 5,129.33 and 2,145.77

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Solution

The fourth proportional to 3,717.17, 5,129.33 and 2,145.77 is: 2,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.17 : 5,129.33 = 2,145.77 : x
  2. Step 2: Convert to fraction form
    3,717.17/5,129.33 = 2,145.77/x
  3. Step 3: Cross multiply
    3,717.17x = 5,129.33 × 2,145.77
  4. Step 4: Simplify right side
    3,717.17x = 11,006,351.71
  5. Step 5: Solve for x
    x = 11,006,351.71/3,717.17
  6. Step 6: Final answer
    x = 2,960.95

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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.