Home / 3,863.80-5,330.05-2,445.09

Finding the Fourth Proportional to 3,863.80, 5,330.05 and 2,445.09

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Solution

The fourth proportional to 3,863.80, 5,330.05 and 2,445.09 is: 3,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.80 : 5,330.05 = 2,445.09 : x
  2. Step 2: Convert to fraction form
    3,863.80/5,330.05 = 2,445.09/x
  3. Step 3: Cross multiply
    3,863.80x = 5,330.05 × 2,445.09
  4. Step 4: Simplify right side
    3,863.80x = 13,032,439.61
  5. Step 5: Solve for x
    x = 13,032,439.61/3,863.80
  6. Step 6: Final answer
    x = 3,372.96

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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.