Home / 3,002.58-4,504.11-811.28

Finding the Fourth Proportional to 3,002.58, 4,504.11 and 811.28

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Solution

The fourth proportional to 3,002.58, 4,504.11 and 811.28 is: 1,216.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.58 : 4,504.11 = 811.28 : x
  2. Step 2: Convert to fraction form
    3,002.58/4,504.11 = 811.28/x
  3. Step 3: Cross multiply
    3,002.58x = 4,504.11 × 811.28
  4. Step 4: Simplify right side
    3,002.58x = 3,654,071.84
  5. Step 5: Solve for x
    x = 3,654,071.84/3,002.58
  6. Step 6: Final answer
    x = 1,216.98

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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.