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Finding the Fourth Proportional to 3,756.63, 5,629.46 and 2,113.63

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Solution

The fourth proportional to 3,756.63, 5,629.46 and 2,113.63 is: 3,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.63 : 5,629.46 = 2,113.63 : x
  2. Step 2: Convert to fraction form
    3,756.63/5,629.46 = 2,113.63/x
  3. Step 3: Cross multiply
    3,756.63x = 5,629.46 × 2,113.63
  4. Step 4: Simplify right side
    3,756.63x = 11,898,595.54
  5. Step 5: Solve for x
    x = 11,898,595.54/3,756.63
  6. Step 6: Final answer
    x = 3,167.36

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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.