Home / 3,145.53-4,338.88-2,262.51

Finding the Fourth Proportional to 3,145.53, 4,338.88 and 2,262.51

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Solution

The fourth proportional to 3,145.53, 4,338.88 and 2,262.51 is: 3,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.53 : 4,338.88 = 2,262.51 : x
  2. Step 2: Convert to fraction form
    3,145.53/4,338.88 = 2,262.51/x
  3. Step 3: Cross multiply
    3,145.53x = 4,338.88 × 2,262.51
  4. Step 4: Simplify right side
    3,145.53x = 9,816,759.39
  5. Step 5: Solve for x
    x = 9,816,759.39/3,145.53
  6. Step 6: Final answer
    x = 3,120.86

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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.