Home / 3,218.49-4,831.88-1,758.65

Finding the Fourth Proportional to 3,218.49, 4,831.88 and 1,758.65

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Solution

The fourth proportional to 3,218.49, 4,831.88 and 1,758.65 is: 2,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.49 : 4,831.88 = 1,758.65 : x
  2. Step 2: Convert to fraction form
    3,218.49/4,831.88 = 1,758.65/x
  3. Step 3: Cross multiply
    3,218.49x = 4,831.88 × 1,758.65
  4. Step 4: Simplify right side
    3,218.49x = 8,497,552.81
  5. Step 5: Solve for x
    x = 8,497,552.81/3,218.49
  6. Step 6: Final answer
    x = 2,640.23

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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.