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Finding the Fourth Proportional to 2,966.42, 4,093.65 and 1,640.09

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Solution

The fourth proportional to 2,966.42, 4,093.65 and 1,640.09 is: 2,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.42 : 4,093.65 = 1,640.09 : x
  2. Step 2: Convert to fraction form
    2,966.42/4,093.65 = 1,640.09/x
  3. Step 3: Cross multiply
    2,966.42x = 4,093.65 × 1,640.09
  4. Step 4: Simplify right side
    2,966.42x = 6,713,933.96
  5. Step 5: Solve for x
    x = 6,713,933.96/2,966.42
  6. Step 6: Final answer
    x = 2,263.32

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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.