Home / 3,185.10-4,769.97-2,820.30

Finding the Fourth Proportional to 3,185.10, 4,769.97 and 2,820.30

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Solution

The fourth proportional to 3,185.10, 4,769.97 and 2,820.30 is: 4,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.10 : 4,769.97 = 2,820.30 : x
  2. Step 2: Convert to fraction form
    3,185.10/4,769.97 = 2,820.30/x
  3. Step 3: Cross multiply
    3,185.10x = 4,769.97 × 2,820.30
  4. Step 4: Simplify right side
    3,185.10x = 13,452,746.39
  5. Step 5: Solve for x
    x = 13,452,746.39/3,185.10
  6. Step 6: Final answer
    x = 4,223.65

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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.