Home / 5,129.14-7,077.34-2,859.98

Finding the Fourth Proportional to 5,129.14, 7,077.34 and 2,859.98

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Solution

The fourth proportional to 5,129.14, 7,077.34 and 2,859.98 is: 3,946.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.14 : 7,077.34 = 2,859.98 : x
  2. Step 2: Convert to fraction form
    5,129.14/7,077.34 = 2,859.98/x
  3. Step 3: Cross multiply
    5,129.14x = 7,077.34 × 2,859.98
  4. Step 4: Simplify right side
    5,129.14x = 20,241,050.85
  5. Step 5: Solve for x
    x = 20,241,050.85/5,129.14
  6. Step 6: Final answer
    x = 3,946.29

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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.