Home / 1,568.38-2,162.68-1,322.41

Finding the Fourth Proportional to 1,568.38, 2,162.68 and 1,322.41

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Solution

The fourth proportional to 1,568.38, 2,162.68 and 1,322.41 is: 1,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.38 : 2,162.68 = 1,322.41 : x
  2. Step 2: Convert to fraction form
    1,568.38/2,162.68 = 1,322.41/x
  3. Step 3: Cross multiply
    1,568.38x = 2,162.68 × 1,322.41
  4. Step 4: Simplify right side
    1,568.38x = 2,859,949.66
  5. Step 5: Solve for x
    x = 2,859,949.66/1,568.38
  6. Step 6: Final answer
    x = 1,823.51

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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.