Home / 3,815.87-5,722.88-1,042.56

Finding the Fourth Proportional to 3,815.87, 5,722.88 and 1,042.56

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Solution

The fourth proportional to 3,815.87, 5,722.88 and 1,042.56 is: 1,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.87 : 5,722.88 = 1,042.56 : x
  2. Step 2: Convert to fraction form
    3,815.87/5,722.88 = 1,042.56/x
  3. Step 3: Cross multiply
    3,815.87x = 5,722.88 × 1,042.56
  4. Step 4: Simplify right side
    3,815.87x = 5,966,417.16
  5. Step 5: Solve for x
    x = 5,966,417.16/3,815.87
  6. Step 6: Final answer
    x = 1,563.58

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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.