Home / 3,210.79-4,814.52-2,170.75

Finding the Fourth Proportional to 3,210.79, 4,814.52 and 2,170.75

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Solution

The fourth proportional to 3,210.79, 4,814.52 and 2,170.75 is: 3,255.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.79 : 4,814.52 = 2,170.75 : x
  2. Step 2: Convert to fraction form
    3,210.79/4,814.52 = 2,170.75/x
  3. Step 3: Cross multiply
    3,210.79x = 4,814.52 × 2,170.75
  4. Step 4: Simplify right side
    3,210.79x = 10,451,119.29
  5. Step 5: Solve for x
    x = 10,451,119.29/3,210.79
  6. Step 6: Final answer
    x = 3,255.00

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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.