Home / 3,900.26-5,376.30-2,903.96

Finding the Fourth Proportional to 3,900.26, 5,376.30 and 2,903.96

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Solution

The fourth proportional to 3,900.26, 5,376.30 and 2,903.96 is: 4,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.26 : 5,376.30 = 2,903.96 : x
  2. Step 2: Convert to fraction form
    3,900.26/5,376.30 = 2,903.96/x
  3. Step 3: Cross multiply
    3,900.26x = 5,376.30 × 2,903.96
  4. Step 4: Simplify right side
    3,900.26x = 15,612,560.15
  5. Step 5: Solve for x
    x = 15,612,560.15/3,900.26
  6. Step 6: Final answer
    x = 4,002.95

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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.