Home / 2,712.69-3,742.20-1,717.61

Finding the Fourth Proportional to 2,712.69, 3,742.20 and 1,717.61

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Solution

The fourth proportional to 2,712.69, 3,742.20 and 1,717.61 is: 2,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.69 : 3,742.20 = 1,717.61 : x
  2. Step 2: Convert to fraction form
    2,712.69/3,742.20 = 1,717.61/x
  3. Step 3: Cross multiply
    2,712.69x = 3,742.20 × 1,717.61
  4. Step 4: Simplify right side
    2,712.69x = 6,427,621.43
  5. Step 5: Solve for x
    x = 6,427,621.43/2,712.69
  6. Step 6: Final answer
    x = 2,369.46

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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.