Home / 3,325.80-4,589.52-1,909.74

Finding the Fourth Proportional to 3,325.80, 4,589.52 and 1,909.74

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Solution

The fourth proportional to 3,325.80, 4,589.52 and 1,909.74 is: 2,635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.80 : 4,589.52 = 1,909.74 : x
  2. Step 2: Convert to fraction form
    3,325.80/4,589.52 = 1,909.74/x
  3. Step 3: Cross multiply
    3,325.80x = 4,589.52 × 1,909.74
  4. Step 4: Simplify right side
    3,325.80x = 8,764,789.92
  5. Step 5: Solve for x
    x = 8,764,789.92/3,325.80
  6. Step 6: Final answer
    x = 2,635.39

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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.