Home / 2,281.64-3,148.80-1,286.96

Finding the Fourth Proportional to 2,281.64, 3,148.80 and 1,286.96

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Solution

The fourth proportional to 2,281.64, 3,148.80 and 1,286.96 is: 1,776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.64 : 3,148.80 = 1,286.96 : x
  2. Step 2: Convert to fraction form
    2,281.64/3,148.80 = 1,286.96/x
  3. Step 3: Cross multiply
    2,281.64x = 3,148.80 × 1,286.96
  4. Step 4: Simplify right side
    2,281.64x = 4,052,379.65
  5. Step 5: Solve for x
    x = 4,052,379.65/2,281.64
  6. Step 6: Final answer
    x = 1,776.08

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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.