Home / 2,865.54-4,297.23-1,221.24

Finding the Fourth Proportional to 2,865.54, 4,297.23 and 1,221.24

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Solution

The fourth proportional to 2,865.54, 4,297.23 and 1,221.24 is: 1,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.54 : 4,297.23 = 1,221.24 : x
  2. Step 2: Convert to fraction form
    2,865.54/4,297.23 = 1,221.24/x
  3. Step 3: Cross multiply
    2,865.54x = 4,297.23 × 1,221.24
  4. Step 4: Simplify right side
    2,865.54x = 5,247,949.17
  5. Step 5: Solve for x
    x = 5,247,949.17/2,865.54
  6. Step 6: Final answer
    x = 1,831.40

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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.