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Finding the Fourth Proportional to 3,004.43, 4,506.86 and 813.12

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Solution

The fourth proportional to 3,004.43, 4,506.86 and 813.12 is: 1,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,004.43 : 4,506.86 = 813.12 : x
  2. Step 2: Convert to fraction form
    3,004.43/4,506.86 = 813.12/x
  3. Step 3: Cross multiply
    3,004.43x = 4,506.86 × 813.12
  4. Step 4: Simplify right side
    3,004.43x = 3,664,603.14
  5. Step 5: Solve for x
    x = 3,664,603.14/3,004.43
  6. Step 6: Final answer
    x = 1,219.74

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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.