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Finding the Fourth Proportional to 3,974.82, 5,487.60 and 2,484

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Solution

The fourth proportional to 3,974.82, 5,487.60 and 2,484 is: 3,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.82 : 5,487.60 = 2,484 : x
  2. Step 2: Convert to fraction form
    3,974.82/5,487.60 = 2,484/x
  3. Step 3: Cross multiply
    3,974.82x = 5,487.60 × 2,484
  4. Step 4: Simplify right side
    3,974.82x = 13,631,198.40
  5. Step 5: Solve for x
    x = 13,631,198.40/3,974.82
  6. Step 6: Final answer
    x = 3,429.39

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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.