Home / 3,185.46-4,396.17-1,858.88

Finding the Fourth Proportional to 3,185.46, 4,396.17 and 1,858.88

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Solution

The fourth proportional to 3,185.46, 4,396.17 and 1,858.88 is: 2,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.46 : 4,396.17 = 1,858.88 : x
  2. Step 2: Convert to fraction form
    3,185.46/4,396.17 = 1,858.88/x
  3. Step 3: Cross multiply
    3,185.46x = 4,396.17 × 1,858.88
  4. Step 4: Simplify right side
    3,185.46x = 8,171,970.45
  5. Step 5: Solve for x
    x = 8,171,970.45/3,185.46
  6. Step 6: Final answer
    x = 2,565.40

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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.