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Finding the Fourth Proportional to 3,002.79, 4,504.24 and 811.58

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Solution

The fourth proportional to 3,002.79, 4,504.24 and 811.58 is: 1,217.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.79 : 4,504.24 = 811.58 : x
  2. Step 2: Convert to fraction form
    3,002.79/4,504.24 = 811.58/x
  3. Step 3: Cross multiply
    3,002.79x = 4,504.24 × 811.58
  4. Step 4: Simplify right side
    3,002.79x = 3,655,551.10
  5. Step 5: Solve for x
    x = 3,655,551.10/3,002.79
  6. Step 6: Final answer
    x = 1,217.38

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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.