Home / 3,852.20-5,778.30-2,612.90

Finding the Fourth Proportional to 3,852.20, 5,778.30 and 2,612.90

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Solution

The fourth proportional to 3,852.20, 5,778.30 and 2,612.90 is: 3,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.20 : 5,778.30 = 2,612.90 : x
  2. Step 2: Convert to fraction form
    3,852.20/5,778.30 = 2,612.90/x
  3. Step 3: Cross multiply
    3,852.20x = 5,778.30 × 2,612.90
  4. Step 4: Simplify right side
    3,852.20x = 15,098,120.07
  5. Step 5: Solve for x
    x = 15,098,120.07/3,852.20
  6. Step 6: Final answer
    x = 3,919.35

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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.