Home / 3,217.56-4,822.80-2,105.64

Finding the Fourth Proportional to 3,217.56, 4,822.80 and 2,105.64

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Solution

The fourth proportional to 3,217.56, 4,822.80 and 2,105.64 is: 3,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.56 : 4,822.80 = 2,105.64 : x
  2. Step 2: Convert to fraction form
    3,217.56/4,822.80 = 2,105.64/x
  3. Step 3: Cross multiply
    3,217.56x = 4,822.80 × 2,105.64
  4. Step 4: Simplify right side
    3,217.56x = 10,155,080.59
  5. Step 5: Solve for x
    x = 10,155,080.59/3,217.56
  6. Step 6: Final answer
    x = 3,156.14

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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.