Home / 5,176.61-7,765.46-2,215.36

Finding the Fourth Proportional to 5,176.61, 7,765.46 and 2,215.36

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Solution

The fourth proportional to 5,176.61, 7,765.46 and 2,215.36 is: 3,323.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.61 : 7,765.46 = 2,215.36 : x
  2. Step 2: Convert to fraction form
    5,176.61/7,765.46 = 2,215.36/x
  3. Step 3: Cross multiply
    5,176.61x = 7,765.46 × 2,215.36
  4. Step 4: Simplify right side
    5,176.61x = 17,203,289.47
  5. Step 5: Solve for x
    x = 17,203,289.47/5,176.61
  6. Step 6: Final answer
    x = 3,323.27

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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.