Home / 5,717.82-7,890.65-3,360

Finding the Fourth Proportional to 5,717.82, 7,890.65 and 3,360

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Solution

The fourth proportional to 5,717.82, 7,890.65 and 3,360 is: 4,636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.82 : 7,890.65 = 3,360 : x
  2. Step 2: Convert to fraction form
    5,717.82/7,890.65 = 3,360/x
  3. Step 3: Cross multiply
    5,717.82x = 7,890.65 × 3,360
  4. Step 4: Simplify right side
    5,717.82x = 26,512,584
  5. Step 5: Solve for x
    x = 26,512,584/5,717.82
  6. Step 6: Final answer
    x = 4,636.83

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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.