Home / 1,629.13-2,443.80-655.11

Finding the Fourth Proportional to 1,629.13, 2,443.80 and 655.11

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Solution

The fourth proportional to 1,629.13, 2,443.80 and 655.11 is: 982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.13 : 2,443.80 = 655.11 : x
  2. Step 2: Convert to fraction form
    1,629.13/2,443.80 = 655.11/x
  3. Step 3: Cross multiply
    1,629.13x = 2,443.80 × 655.11
  4. Step 4: Simplify right side
    1,629.13x = 1,600,957.82
  5. Step 5: Solve for x
    x = 1,600,957.82/1,629.13
  6. Step 6: Final answer
    x = 982.71

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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.