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Finding the Fourth Proportional to 3,604.60, 4,974.84 and 2,113.12

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Solution

The fourth proportional to 3,604.60, 4,974.84 and 2,113.12 is: 2,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.60 : 4,974.84 = 2,113.12 : x
  2. Step 2: Convert to fraction form
    3,604.60/4,974.84 = 2,113.12/x
  3. Step 3: Cross multiply
    3,604.60x = 4,974.84 × 2,113.12
  4. Step 4: Simplify right side
    3,604.60x = 10,512,433.90
  5. Step 5: Solve for x
    x = 10,512,433.90/3,604.60
  6. Step 6: Final answer
    x = 2,916.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.