Home / 2,281.56-3,148.53-1,286.77

Finding the Fourth Proportional to 2,281.56, 3,148.53 and 1,286.77

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Solution

The fourth proportional to 2,281.56, 3,148.53 and 1,286.77 is: 1,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.56 : 3,148.53 = 1,286.77 : x
  2. Step 2: Convert to fraction form
    2,281.56/3,148.53 = 1,286.77/x
  3. Step 3: Cross multiply
    2,281.56x = 3,148.53 × 1,286.77
  4. Step 4: Simplify right side
    2,281.56x = 4,051,433.95
  5. Step 5: Solve for x
    x = 4,051,433.95/2,281.56
  6. Step 6: Final answer
    x = 1,775.73

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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.