Home / 3,847.05-5,274.30-3,776.99

Finding the Fourth Proportional to 3,847.05, 5,274.30 and 3,776.99

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Solution

The fourth proportional to 3,847.05, 5,274.30 and 3,776.99 is: 5,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.05 : 5,274.30 = 3,776.99 : x
  2. Step 2: Convert to fraction form
    3,847.05/5,274.30 = 3,776.99/x
  3. Step 3: Cross multiply
    3,847.05x = 5,274.30 × 3,776.99
  4. Step 4: Simplify right side
    3,847.05x = 19,920,951.99
  5. Step 5: Solve for x
    x = 19,920,951.99/3,847.05
  6. Step 6: Final answer
    x = 5,178.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.