Home / 3,815.28-5,722.92-1,316.43

Finding the Fourth Proportional to 3,815.28, 5,722.92 and 1,316.43

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Solution

The fourth proportional to 3,815.28, 5,722.92 and 1,316.43 is: 1,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.28 : 5,722.92 = 1,316.43 : x
  2. Step 2: Convert to fraction form
    3,815.28/5,722.92 = 1,316.43/x
  3. Step 3: Cross multiply
    3,815.28x = 5,722.92 × 1,316.43
  4. Step 4: Simplify right side
    3,815.28x = 7,533,823.58
  5. Step 5: Solve for x
    x = 7,533,823.58/3,815.28
  6. Step 6: Final answer
    x = 1,974.65

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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.