Home / 3,311.20-4,966.80-1,847.28

Finding the Fourth Proportional to 3,311.20, 4,966.80 and 1,847.28

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Solution

The fourth proportional to 3,311.20, 4,966.80 and 1,847.28 is: 2,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.20 : 4,966.80 = 1,847.28 : x
  2. Step 2: Convert to fraction form
    3,311.20/4,966.80 = 1,847.28/x
  3. Step 3: Cross multiply
    3,311.20x = 4,966.80 × 1,847.28
  4. Step 4: Simplify right side
    3,311.20x = 9,175,070.30
  5. Step 5: Solve for x
    x = 9,175,070.30/3,311.20
  6. Step 6: Final answer
    x = 2,770.92

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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.