Home / 1,815.17-2,724.12-1,329.48

Finding the Fourth Proportional to 1,815.17, 2,724.12 and 1,329.48

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Solution

The fourth proportional to 1,815.17, 2,724.12 and 1,329.48 is: 1,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.17 : 2,724.12 = 1,329.48 : x
  2. Step 2: Convert to fraction form
    1,815.17/2,724.12 = 1,329.48/x
  3. Step 3: Cross multiply
    1,815.17x = 2,724.12 × 1,329.48
  4. Step 4: Simplify right side
    1,815.17x = 3,621,663.06
  5. Step 5: Solve for x
    x = 3,621,663.06/1,815.17
  6. Step 6: Final answer
    x = 1,995.23

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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.