Home / 1,313.28-1,968.66-582.78

Finding the Fourth Proportional to 1,313.28, 1,968.66 and 582.78

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Solution

The fourth proportional to 1,313.28, 1,968.66 and 582.78 is: 873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.28 : 1,968.66 = 582.78 : x
  2. Step 2: Convert to fraction form
    1,313.28/1,968.66 = 582.78/x
  3. Step 3: Cross multiply
    1,313.28x = 1,968.66 × 582.78
  4. Step 4: Simplify right side
    1,313.28x = 1,147,295.67
  5. Step 5: Solve for x
    x = 1,147,295.67/1,313.28
  6. Step 6: Final answer
    x = 873.61

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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.