Home / 2,281.20-3,148.16-1,286.52

Finding the Fourth Proportional to 2,281.20, 3,148.16 and 1,286.52

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Solution

The fourth proportional to 2,281.20, 3,148.16 and 1,286.52 is: 1,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.20 : 3,148.16 = 1,286.52 : x
  2. Step 2: Convert to fraction form
    2,281.20/3,148.16 = 1,286.52/x
  3. Step 3: Cross multiply
    2,281.20x = 3,148.16 × 1,286.52
  4. Step 4: Simplify right side
    2,281.20x = 4,050,170.80
  5. Step 5: Solve for x
    x = 4,050,170.80/2,281.20
  6. Step 6: Final answer
    x = 1,775.46

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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.