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Finding the Fourth Proportional to 3,364.64, 4,642.92 and 1,872.44

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Solution

The fourth proportional to 3,364.64, 4,642.92 and 1,872.44 is: 2,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.64 : 4,642.92 = 1,872.44 : x
  2. Step 2: Convert to fraction form
    3,364.64/4,642.92 = 1,872.44/x
  3. Step 3: Cross multiply
    3,364.64x = 4,642.92 × 1,872.44
  4. Step 4: Simplify right side
    3,364.64x = 8,693,589.12
  5. Step 5: Solve for x
    x = 8,693,589.12/3,364.64
  6. Step 6: Final answer
    x = 2,583.81

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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.