Home / 4,308.72-5,945.40-2,540.40

Finding the Fourth Proportional to 4,308.72, 5,945.40 and 2,540.40

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Solution

The fourth proportional to 4,308.72, 5,945.40 and 2,540.40 is: 3,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.72 : 5,945.40 = 2,540.40 : x
  2. Step 2: Convert to fraction form
    4,308.72/5,945.40 = 2,540.40/x
  3. Step 3: Cross multiply
    4,308.72x = 5,945.40 × 2,540.40
  4. Step 4: Simplify right side
    4,308.72x = 15,103,694.16
  5. Step 5: Solve for x
    x = 15,103,694.16/4,308.72
  6. Step 6: Final answer
    x = 3,505.38

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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.