Home / 3,759.30-5,186.90-2,431.41

Finding the Fourth Proportional to 3,759.30, 5,186.90 and 2,431.41

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Solution

The fourth proportional to 3,759.30, 5,186.90 and 2,431.41 is: 3,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.30 : 5,186.90 = 2,431.41 : x
  2. Step 2: Convert to fraction form
    3,759.30/5,186.90 = 2,431.41/x
  3. Step 3: Cross multiply
    3,759.30x = 5,186.90 × 2,431.41
  4. Step 4: Simplify right side
    3,759.30x = 12,611,467.16
  5. Step 5: Solve for x
    x = 12,611,467.16/3,759.30
  6. Step 6: Final answer
    x = 3,354.74

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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.