Home / 1,352.24-2,028.36-485.93

Finding the Fourth Proportional to 1,352.24, 2,028.36 and 485.93

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Solution

The fourth proportional to 1,352.24, 2,028.36 and 485.93 is: 728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.24 : 2,028.36 = 485.93 : x
  2. Step 2: Convert to fraction form
    1,352.24/2,028.36 = 485.93/x
  3. Step 3: Cross multiply
    1,352.24x = 2,028.36 × 485.93
  4. Step 4: Simplify right side
    1,352.24x = 985,640.97
  5. Step 5: Solve for x
    x = 985,640.97/1,352.24
  6. Step 6: Final answer
    x = 728.90

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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.