Home / 2,863.05-4,295.49-1,221.00

Finding the Fourth Proportional to 2,863.05, 4,295.49 and 1,221.00

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Solution

The fourth proportional to 2,863.05, 4,295.49 and 1,221.00 is: 1,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.05 : 4,295.49 = 1,221.00 : x
  2. Step 2: Convert to fraction form
    2,863.05/4,295.49 = 1,221.00/x
  3. Step 3: Cross multiply
    2,863.05x = 4,295.49 × 1,221.00
  4. Step 4: Simplify right side
    2,863.05x = 5,244,771.81
  5. Step 5: Solve for x
    x = 5,244,771.81/2,863.05
  6. Step 6: Final answer
    x = 1,831.89

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1.5x scale

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.