Home / 3,820.20-5,730.30-3,164.10

Finding the Fourth Proportional to 3,820.20, 5,730.30 and 3,164.10

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Solution

The fourth proportional to 3,820.20, 5,730.30 and 3,164.10 is: 4,746.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.20 : 5,730.30 = 3,164.10 : x
  2. Step 2: Convert to fraction form
    3,820.20/5,730.30 = 3,164.10/x
  3. Step 3: Cross multiply
    3,820.20x = 5,730.30 × 3,164.10
  4. Step 4: Simplify right side
    3,820.20x = 18,131,242.23
  5. Step 5: Solve for x
    x = 18,131,242.23/3,820.20
  6. Step 6: Final answer
    x = 4,746.15

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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.