Home / 5,158.20-7,119.30-3,063.48

Finding the Fourth Proportional to 5,158.20, 7,119.30 and 3,063.48

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Solution

The fourth proportional to 5,158.20, 7,119.30 and 3,063.48 is: 4,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.20 : 7,119.30 = 3,063.48 : x
  2. Step 2: Convert to fraction form
    5,158.20/7,119.30 = 3,063.48/x
  3. Step 3: Cross multiply
    5,158.20x = 7,119.30 × 3,063.48
  4. Step 4: Simplify right side
    5,158.20x = 21,809,833.16
  5. Step 5: Solve for x
    x = 21,809,833.16/5,158.20
  6. Step 6: Final answer
    x = 4,228.19

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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.