Home / 3,924.72-5,414.30-2,507.70

Finding the Fourth Proportional to 3,924.72, 5,414.30 and 2,507.70

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Solution

The fourth proportional to 3,924.72, 5,414.30 and 2,507.70 is: 3,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.72 : 5,414.30 = 2,507.70 : x
  2. Step 2: Convert to fraction form
    3,924.72/5,414.30 = 2,507.70/x
  3. Step 3: Cross multiply
    3,924.72x = 5,414.30 × 2,507.70
  4. Step 4: Simplify right side
    3,924.72x = 13,577,440.11
  5. Step 5: Solve for x
    x = 13,577,440.11/3,924.72
  6. Step 6: Final answer
    x = 3,459.47

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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.