Home / 2,863.68-4,297.47-1,220.59

Finding the Fourth Proportional to 2,863.68, 4,297.47 and 1,220.59

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Solution

The fourth proportional to 2,863.68, 4,297.47 and 1,220.59 is: 1,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.68 : 4,297.47 = 1,220.59 : x
  2. Step 2: Convert to fraction form
    2,863.68/4,297.47 = 1,220.59/x
  3. Step 3: Cross multiply
    2,863.68x = 4,297.47 × 1,220.59
  4. Step 4: Simplify right side
    2,863.68x = 5,245,448.91
  5. Step 5: Solve for x
    x = 5,245,448.91/2,863.68
  6. Step 6: Final answer
    x = 1,831.72

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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.