Home / 3,205.58-4,807.76-1,125.09

Finding the Fourth Proportional to 3,205.58, 4,807.76 and 1,125.09

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Solution

The fourth proportional to 3,205.58, 4,807.76 and 1,125.09 is: 1,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.58 : 4,807.76 = 1,125.09 : x
  2. Step 2: Convert to fraction form
    3,205.58/4,807.76 = 1,125.09/x
  3. Step 3: Cross multiply
    3,205.58x = 4,807.76 × 1,125.09
  4. Step 4: Simplify right side
    3,205.58x = 5,409,157.07
  5. Step 5: Solve for x
    x = 5,409,157.07/3,205.58
  6. Step 6: Final answer
    x = 1,687.42

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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.