Home / 3,311.12-4,963.80-1,666.28

Finding the Fourth Proportional to 3,311.12, 4,963.80 and 1,666.28

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Solution

The fourth proportional to 3,311.12, 4,963.80 and 1,666.28 is: 2,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.12 : 4,963.80 = 1,666.28 : x
  2. Step 2: Convert to fraction form
    3,311.12/4,963.80 = 1,666.28/x
  3. Step 3: Cross multiply
    3,311.12x = 4,963.80 × 1,666.28
  4. Step 4: Simplify right side
    3,311.12x = 8,271,080.66
  5. Step 5: Solve for x
    x = 8,271,080.66/3,311.12
  6. Step 6: Final answer
    x = 2,497.97

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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.