Home / 3,815.79-5,260.62-3,262.20

Finding the Fourth Proportional to 3,815.79, 5,260.62 and 3,262.20

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Solution

The fourth proportional to 3,815.79, 5,260.62 and 3,262.20 is: 4,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.79 : 5,260.62 = 3,262.20 : x
  2. Step 2: Convert to fraction form
    3,815.79/5,260.62 = 3,262.20/x
  3. Step 3: Cross multiply
    3,815.79x = 5,260.62 × 3,262.20
  4. Step 4: Simplify right side
    3,815.79x = 17,161,208.17
  5. Step 5: Solve for x
    x = 17,161,208.17/3,815.79
  6. Step 6: Final answer
    x = 4,497.42

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1.5x scale

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.