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Finding the Fourth Proportional to 2,965.63, 4,449.23 and 885.64

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Solution

The fourth proportional to 2,965.63, 4,449.23 and 885.64 is: 1,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.63 : 4,449.23 = 885.64 : x
  2. Step 2: Convert to fraction form
    2,965.63/4,449.23 = 885.64/x
  3. Step 3: Cross multiply
    2,965.63x = 4,449.23 × 885.64
  4. Step 4: Simplify right side
    2,965.63x = 3,940,416.06
  5. Step 5: Solve for x
    x = 3,940,416.06/2,965.63
  6. Step 6: Final answer
    x = 1,328.69

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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.