Home / 3,558.66-4,909.25-2,231.70

Finding the Fourth Proportional to 3,558.66, 4,909.25 and 2,231.70

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Solution

The fourth proportional to 3,558.66, 4,909.25 and 2,231.70 is: 3,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.66 : 4,909.25 = 2,231.70 : x
  2. Step 2: Convert to fraction form
    3,558.66/4,909.25 = 2,231.70/x
  3. Step 3: Cross multiply
    3,558.66x = 4,909.25 × 2,231.70
  4. Step 4: Simplify right side
    3,558.66x = 10,955,973.23
  5. Step 5: Solve for x
    x = 10,955,973.23/3,558.66
  6. Step 6: Final answer
    x = 3,078.68

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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.