Home / 3,231.80-4,459.35-1,905.32

Finding the Fourth Proportional to 3,231.80, 4,459.35 and 1,905.32

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Solution

The fourth proportional to 3,231.80, 4,459.35 and 1,905.32 is: 2,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.80 : 4,459.35 = 1,905.32 : x
  2. Step 2: Convert to fraction form
    3,231.80/4,459.35 = 1,905.32/x
  3. Step 3: Cross multiply
    3,231.80x = 4,459.35 × 1,905.32
  4. Step 4: Simplify right side
    3,231.80x = 8,496,488.74
  5. Step 5: Solve for x
    x = 8,496,488.74/3,231.80
  6. Step 6: Final answer
    x = 2,629.03

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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.