Home / 5,147.16-7,103.03-2,909.76

Finding the Fourth Proportional to 5,147.16, 7,103.03 and 2,909.76

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Solution

The fourth proportional to 5,147.16, 7,103.03 and 2,909.76 is: 4,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.16 : 7,103.03 = 2,909.76 : x
  2. Step 2: Convert to fraction form
    5,147.16/7,103.03 = 2,909.76/x
  3. Step 3: Cross multiply
    5,147.16x = 7,103.03 × 2,909.76
  4. Step 4: Simplify right side
    5,147.16x = 20,668,112.57
  5. Step 5: Solve for x
    x = 20,668,112.57/5,147.16
  6. Step 6: Final answer
    x = 4,015.44

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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.