Home / 1,230.26-1,831.98-1,216.62

Finding the Fourth Proportional to 1,230.26, 1,831.98 and 1,216.62

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Solution

The fourth proportional to 1,230.26, 1,831.98 and 1,216.62 is: 1,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.26 : 1,831.98 = 1,216.62 : x
  2. Step 2: Convert to fraction form
    1,230.26/1,831.98 = 1,216.62/x
  3. Step 3: Cross multiply
    1,230.26x = 1,831.98 × 1,216.62
  4. Step 4: Simplify right side
    1,230.26x = 2,228,828.07
  5. Step 5: Solve for x
    x = 2,228,828.07/1,230.26
  6. Step 6: Final answer
    x = 1,811.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.