Home / 4,508.45-6,761.84-1,221.12

Finding the Fourth Proportional to 4,508.45, 6,761.84 and 1,221.12

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Solution

The fourth proportional to 4,508.45, 6,761.84 and 1,221.12 is: 1,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,508.45 : 6,761.84 = 1,221.12 : x
  2. Step 2: Convert to fraction form
    4,508.45/6,761.84 = 1,221.12/x
  3. Step 3: Cross multiply
    4,508.45x = 6,761.84 × 1,221.12
  4. Step 4: Simplify right side
    4,508.45x = 8,257,018.06
  5. Step 5: Solve for x
    x = 8,257,018.06/4,508.45
  6. Step 6: Final answer
    x = 1,831.45

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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.