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Finding the Fourth Proportional to 3,374, 4,656.84 and 2,132.72

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Solution

The fourth proportional to 3,374, 4,656.84 and 2,132.72 is: 2,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374 : 4,656.84 = 2,132.72 : x
  2. Step 2: Convert to fraction form
    3,374/4,656.84 = 2,132.72/x
  3. Step 3: Cross multiply
    3,374x = 4,656.84 × 2,132.72
  4. Step 4: Simplify right side
    3,374x = 9,931,735.80
  5. Step 5: Solve for x
    x = 9,931,735.80/3,374
  6. Step 6: Final answer
    x = 2,943.61

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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.