Home / 1,568.14-2,163.02-1,007.73

Finding the Fourth Proportional to 1,568.14, 2,163.02 and 1,007.73

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Solution

The fourth proportional to 1,568.14, 2,163.02 and 1,007.73 is: 1,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.14 : 2,163.02 = 1,007.73 : x
  2. Step 2: Convert to fraction form
    1,568.14/2,163.02 = 1,007.73/x
  3. Step 3: Cross multiply
    1,568.14x = 2,163.02 × 1,007.73
  4. Step 4: Simplify right side
    1,568.14x = 2,179,740.14
  5. Step 5: Solve for x
    x = 2,179,740.14/1,568.14
  6. Step 6: Final answer
    x = 1,390.02

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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.