Home / 1,568.09-2,163.92-904.43

Finding the Fourth Proportional to 1,568.09, 2,163.92 and 904.43

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Solution

The fourth proportional to 1,568.09, 2,163.92 and 904.43 is: 1,248.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.09 : 2,163.92 = 904.43 : x
  2. Step 2: Convert to fraction form
    1,568.09/2,163.92 = 904.43/x
  3. Step 3: Cross multiply
    1,568.09x = 2,163.92 × 904.43
  4. Step 4: Simplify right side
    1,568.09x = 1,957,115.05
  5. Step 5: Solve for x
    x = 1,957,115.05/1,568.09
  6. Step 6: Final answer
    x = 1,248.09

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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.