Home / 5,291.84-7,935.91-2,170.96

Finding the Fourth Proportional to 5,291.84, 7,935.91 and 2,170.96

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Solution

The fourth proportional to 5,291.84, 7,935.91 and 2,170.96 is: 3,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.84 : 7,935.91 = 2,170.96 : x
  2. Step 2: Convert to fraction form
    5,291.84/7,935.91 = 2,170.96/x
  3. Step 3: Cross multiply
    5,291.84x = 7,935.91 × 2,170.96
  4. Step 4: Simplify right side
    5,291.84x = 17,228,503.49
  5. Step 5: Solve for x
    x = 17,228,503.49/5,291.84
  6. Step 6: Final answer
    x = 3,255.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.