Home / 1,632.21-2,448.30-1,147.42

Finding the Fourth Proportional to 1,632.21, 2,448.30 and 1,147.42

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Solution

The fourth proportional to 1,632.21, 2,448.30 and 1,147.42 is: 1,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.21 : 2,448.30 = 1,147.42 : x
  2. Step 2: Convert to fraction form
    1,632.21/2,448.30 = 1,147.42/x
  3. Step 3: Cross multiply
    1,632.21x = 2,448.30 × 1,147.42
  4. Step 4: Simplify right side
    1,632.21x = 2,809,228.39
  5. Step 5: Solve for x
    x = 2,809,228.39/1,632.21
  6. Step 6: Final answer
    x = 1,721.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.