Home / 2,282.17-3,149.43-1,338.68

Finding the Fourth Proportional to 2,282.17, 3,149.43 and 1,338.68

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Solution

The fourth proportional to 2,282.17, 3,149.43 and 1,338.68 is: 1,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.17 : 3,149.43 = 1,338.68 : x
  2. Step 2: Convert to fraction form
    2,282.17/3,149.43 = 1,338.68/x
  3. Step 3: Cross multiply
    2,282.17x = 3,149.43 × 1,338.68
  4. Step 4: Simplify right side
    2,282.17x = 4,216,071.62
  5. Step 5: Solve for x
    x = 4,216,071.62/2,282.17
  6. Step 6: Final answer
    x = 1,847.40

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1.5x scale

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.