Home / 2,228.42-3,074.26-1,343.72

Finding the Fourth Proportional to 2,228.42, 3,074.26 and 1,343.72

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Solution

The fourth proportional to 2,228.42, 3,074.26 and 1,343.72 is: 1,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.42 : 3,074.26 = 1,343.72 : x
  2. Step 2: Convert to fraction form
    2,228.42/3,074.26 = 1,343.72/x
  3. Step 3: Cross multiply
    2,228.42x = 3,074.26 × 1,343.72
  4. Step 4: Simplify right side
    2,228.42x = 4,130,944.65
  5. Step 5: Solve for x
    x = 4,130,944.65/2,228.42
  6. Step 6: Final answer
    x = 1,853.75

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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.