Home / 5,167.90-7,749.48-2,828.70

Finding the Fourth Proportional to 5,167.90, 7,749.48 and 2,828.70

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Solution

The fourth proportional to 5,167.90, 7,749.48 and 2,828.70 is: 4,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.90 : 7,749.48 = 2,828.70 : x
  2. Step 2: Convert to fraction form
    5,167.90/7,749.48 = 2,828.70/x
  3. Step 3: Cross multiply
    5,167.90x = 7,749.48 × 2,828.70
  4. Step 4: Simplify right side
    5,167.90x = 21,920,954.08
  5. Step 5: Solve for x
    x = 21,920,954.08/5,167.90
  6. Step 6: Final answer
    x = 4,241.75

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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.