Home / 3,246.88-4,471.27-2,821.32

Finding the Fourth Proportional to 3,246.88, 4,471.27 and 2,821.32

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Solution

The fourth proportional to 3,246.88, 4,471.27 and 2,821.32 is: 3,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.88 : 4,471.27 = 2,821.32 : x
  2. Step 2: Convert to fraction form
    3,246.88/4,471.27 = 2,821.32/x
  3. Step 3: Cross multiply
    3,246.88x = 4,471.27 × 2,821.32
  4. Step 4: Simplify right side
    3,246.88x = 12,614,883.48
  5. Step 5: Solve for x
    x = 12,614,883.48/3,246.88
  6. Step 6: Final answer
    x = 3,885.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.