Home / 3,003.18-4,504.87-811.92

Finding the Fourth Proportional to 3,003.18, 4,504.87 and 811.92

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Solution

The fourth proportional to 3,003.18, 4,504.87 and 811.92 is: 1,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.18 : 4,504.87 = 811.92 : x
  2. Step 2: Convert to fraction form
    3,003.18/4,504.87 = 811.92/x
  3. Step 3: Cross multiply
    3,003.18x = 4,504.87 × 811.92
  4. Step 4: Simplify right side
    3,003.18x = 3,657,607.39
  5. Step 5: Solve for x
    x = 3,657,607.39/3,003.18
  6. Step 6: Final answer
    x = 1,217.91

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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.