Home / 3,863.79-5,330.07-2,445.09

Finding the Fourth Proportional to 3,863.79, 5,330.07 and 2,445.09

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Solution

The fourth proportional to 3,863.79, 5,330.07 and 2,445.09 is: 3,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.79 : 5,330.07 = 2,445.09 : x
  2. Step 2: Convert to fraction form
    3,863.79/5,330.07 = 2,445.09/x
  3. Step 3: Cross multiply
    3,863.79x = 5,330.07 × 2,445.09
  4. Step 4: Simplify right side
    3,863.79x = 13,032,500.86
  5. Step 5: Solve for x
    x = 13,032,500.86/3,863.79
  6. Step 6: Final answer
    x = 3,372.98

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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.