Home / 3,176.36-4,380.96-2,782.70

Finding the Fourth Proportional to 3,176.36, 4,380.96 and 2,782.70

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Solution

The fourth proportional to 3,176.36, 4,380.96 and 2,782.70 is: 3,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.36 : 4,380.96 = 2,782.70 : x
  2. Step 2: Convert to fraction form
    3,176.36/4,380.96 = 2,782.70/x
  3. Step 3: Cross multiply
    3,176.36x = 4,380.96 × 2,782.70
  4. Step 4: Simplify right side
    3,176.36x = 12,190,902.35
  5. Step 5: Solve for x
    x = 12,190,902.35/3,176.36
  6. Step 6: Final answer
    x = 3,838.01

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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.