Home / 1,002.12-1,382.96-582.62

Finding the Fourth Proportional to 1,002.12, 1,382.96 and 582.62

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Solution

The fourth proportional to 1,002.12, 1,382.96 and 582.62 is: 804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002.12 : 1,382.96 = 582.62 : x
  2. Step 2: Convert to fraction form
    1,002.12/1,382.96 = 582.62/x
  3. Step 3: Cross multiply
    1,002.12x = 1,382.96 × 582.62
  4. Step 4: Simplify right side
    1,002.12x = 805,730.33
  5. Step 5: Solve for x
    x = 805,730.33/1,002.12
  6. Step 6: Final answer
    x = 804.03

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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.