Home / 4,154.98-6,231.20-1,380.92

Finding the Fourth Proportional to 4,154.98, 6,231.20 and 1,380.92

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Solution

The fourth proportional to 4,154.98, 6,231.20 and 1,380.92 is: 2,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.98 : 6,231.20 = 1,380.92 : x
  2. Step 2: Convert to fraction form
    4,154.98/6,231.20 = 1,380.92/x
  3. Step 3: Cross multiply
    4,154.98x = 6,231.20 × 1,380.92
  4. Step 4: Simplify right side
    4,154.98x = 8,604,788.70
  5. Step 5: Solve for x
    x = 8,604,788.70/4,154.98
  6. Step 6: Final answer
    x = 2,070.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.