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Finding the Fourth Proportional to 3,606.64, 4,977.15 and 1,950.64

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Solution

The fourth proportional to 3,606.64, 4,977.15 and 1,950.64 is: 2,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.64 : 4,977.15 = 1,950.64 : x
  2. Step 2: Convert to fraction form
    3,606.64/4,977.15 = 1,950.64/x
  3. Step 3: Cross multiply
    3,606.64x = 4,977.15 × 1,950.64
  4. Step 4: Simplify right side
    3,606.64x = 9,708,627.88
  5. Step 5: Solve for x
    x = 9,708,627.88/3,606.64
  6. Step 6: Final answer
    x = 2,691.88

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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.