Home / 4,508.79-6,763.56-1,221.81

Finding the Fourth Proportional to 4,508.79, 6,763.56 and 1,221.81

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Solution

The fourth proportional to 4,508.79, 6,763.56 and 1,221.81 is: 1,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,508.79 : 6,763.56 = 1,221.81 : x
  2. Step 2: Convert to fraction form
    4,508.79/6,763.56 = 1,221.81/x
  3. Step 3: Cross multiply
    4,508.79x = 6,763.56 × 1,221.81
  4. Step 4: Simplify right side
    4,508.79x = 8,263,785.24
  5. Step 5: Solve for x
    x = 8,263,785.24/4,508.79
  6. Step 6: Final answer
    x = 1,832.82

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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.