Home / 3,110.21-4,292.10-1,712.96

Finding the Fourth Proportional to 3,110.21, 4,292.10 and 1,712.96

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Solution

The fourth proportional to 3,110.21, 4,292.10 and 1,712.96 is: 2,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.21 : 4,292.10 = 1,712.96 : x
  2. Step 2: Convert to fraction form
    3,110.21/4,292.10 = 1,712.96/x
  3. Step 3: Cross multiply
    3,110.21x = 4,292.10 × 1,712.96
  4. Step 4: Simplify right side
    3,110.21x = 7,352,174.16
  5. Step 5: Solve for x
    x = 7,352,174.16/3,110.21
  6. Step 6: Final answer
    x = 2,363.89

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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.