Home / 2,281.59-3,148.62-1,286.88

Finding the Fourth Proportional to 2,281.59, 3,148.62 and 1,286.88

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Solution

The fourth proportional to 2,281.59, 3,148.62 and 1,286.88 is: 1,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.59 : 3,148.62 = 1,286.88 : x
  2. Step 2: Convert to fraction form
    2,281.59/3,148.62 = 1,286.88/x
  3. Step 3: Cross multiply
    2,281.59x = 3,148.62 × 1,286.88
  4. Step 4: Simplify right side
    2,281.59x = 4,051,896.11
  5. Step 5: Solve for x
    x = 4,051,896.11/2,281.59
  6. Step 6: Final answer
    x = 1,775.91

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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.